UPDATE weird sendmail problem on Solaris 9 (fwd)

From: lists@internyc.net
Date: 04/10/03

  • Next message: Monappallil, George: "Veritas VM docs: Summary"
    From: lists@internyc.net
    To: sunmanagers@sunmanagers.org
    Date: Thu, 10 Apr 2003 11:04:11 -0400 (EDT)
    

    I was asked to supply info about my sendmail config and my nsswitch.conf
    file. So I am including nsswitch.conf, sendmail.mc, submit.mc, sendmail.cf
    and submit.cf files.

    Once agian thanks
    fil

    nsswitch.conf
    #
    # /etc/nsswitch.dns:
    #
    # An example file that could be copied over to /etc/nsswitch.conf; it uses
    # DNS for hosts lookups, otherwise it does not use any other naming service.
    #
    # "hosts:" and "services:" in this file are used only if the
    # /etc/netconfig file has a "-" for nametoaddr_libs of "inet" transports.

    passwd: files
    group: files

    # You must also set up the /etc/resolv.conf file for DNS name
    # server lookup. See resolv.conf(4).
    hosts: files dns
    ipnodes: files
    # Uncomment the following line and comment out the above to resolve
    # both IPv4 and IPv6 addresses from the ipnodes databases. Note that
    # IPv4 addresses are searched in all of the ipnodes databases before
    # searching the hosts databases. Before turning this option on, consult
    # the Network Administration Guide for more details on using IPv6.
    #ipnodes: files dns

    networks: files
    protocols: files
    rpc: files
    ethers: files
    netmasks: files
    bootparams: files
    publickey: files
    # At present there isn't a 'files' backend for netgroup; the system will
    # figure it out pretty quickly, and won't use netgroups at all.
    netgroup: files
    automount: files
    aliases: files
    services: files
    sendmailvars: files
    printers: user files

    auth_attr: files
    prof_attr: files
    project: files

    --------------------------------------------------------------------------
    sendmail.mc

    divert(0)dnl
    VERSIONID(`$Id: sendmail.mc 8.12.1 (Fil) 10/04/01 fil Exp $')
    OSTYPE(solaris2)dnl
    MASQUERADE_AS(fikus.com)dnl

    FEATURE(`no_default_msa',`dnl')dnl
    FEATURE(use_cw_file)dnl
    FEATURE(stickyhost)dnl
    FEATURE(limited_masquerade)dnl
    FEATURE(nouucp, `reject')dnl
    FEATURE(virtusertable)dnl
    FEATURE(access_db)dnl
    FEATURE(blacklist_recipients)dnl
    dnl FEATURE(dnsbl)dnl
    FEATURE(redirect)dnl
    FEATURE(`always_add_domain')dnl
    FEATURE(`masquerade_envelope')dnl
    FEATURE(`accept_unresolvable_domains')dnl

    define(`confDEF_USER_ID',`8:12')dnl
    define(`confTO_CONNECT', `3m')dnl
    define(`confTRY_NULL_MX_LIST',`True')dnl
    define(`confDONT_PROBE_INTERFACES',`True')dnl
    define(`PROCMAIL_MAILER_PATH',`/usr/bin/procmail')dnl
    define(`SMTP_MAILER_MAXMSGS', `6')dnl
    define(`SMTP_MAILER_MAXRCPTS', `6')dnl
    define(`RELAY_MAILER_MAXMSGS', `6')dnl
    define(`LOCAL_MAILER_MAX', `5242880')dnl
    define(`SMTP_MAILER_MAX', `5242880')dnl
    define(`confPRIVACY_FLAGS', `authwarnings,novrfy,noexpn,needmailhelo')dnl
    define(`confMAX_MIME_HEADER_LENGTH', `256/128')dnl
    define(`confSMTP_LOGIN_MSG', `$j; $b \n\n Fikus.com\n Does not authorize the use of its proprietary computers and computer\n networks to accept, transmit, or distribute unsolicited bulk\n e-mail sent from the internet.\n')dnl
    define(`confTO_IDENT', `0')dnl

    EXPOSED_USER_FILE(`/etc/mail/exposed_user')
    LOCAL_USER_FILE(`/etc/mail/local_user')

    undefine(`UUCP_RELAY')dnl
    undefine(`BITNET_RELAY')dnl

    MAILER(local)dnl
    MAILER(smtp)dnl
    MAILER(pop)dnl
    MAILER(procmail)dnl

    INPUT_MAIL_FILTER(`mimedefang', `S=unix:/var/spool/MIMEDefang/mimedefang.sock, F=T, T=S:60s;R:60s;E:5m')

    -----------------------------------------------------------------------------
    submit.mc

    divert(-1)
    #
    # Copyright (c) 2001, 2002 Sendmail, Inc. and its suppliers.
    # All rights reserved.
    #
    # By using this file, you agree to the terms and conditions set
    # forth in the LICENSE file which can be found at the top level of
    # the sendmail distribution.
    #
    #

    #
    # This is the prototype file for a set-group-ID sm-msp sendmail that
    # acts as a initial mail submission program.
    #

    divert(0)dnl
    VERSIONID(`$Id: submit.mc,v 8.12.9 2003/04/09 ca Exp $')
    define(`confCF_VERSION', `Submit')dnl
    define(`__OSTYPE__',`')dnl dirty hack to keep proto.m4 from complaining
    define(`_USE_DECNET_SYNTAX_', `1')dnl support DECnet
    define(`confTIME_ZONE', `USE_TZ')dnl
    define(`confDONT_INIT_GROUPS', `True')dnl
    define(`confPID_FILE', `/var/run/sm-client.pid')dnl
    FEATURE(`msp', `[127.0.0.1]')dnl

    -----------------------------------------------------

    sendmail.cf

    #
    # Copyright (c) 1998-2002 Sendmail, Inc. and its suppliers.
    # All rights reserved.
    # Copyright (c) 1983, 1995 Eric P. Allman. All rights reserved.
    # Copyright (c) 1988, 1993
    # The Regents of the University of California. All rights reserved.
    #
    # By using this file, you agree to the terms and conditions set
    # forth in the LICENSE file which can be found at the top level of
    # the sendmail distribution.
    #
    #

    ######################################################################
    ######################################################################
    #####
    ##### SENDMAIL CONFIGURATION FILE
    #####
    ##### built by root@sun on Thu Apr 10 01:50:19 EDT 2003
    ##### in /usr/local/src/system/sendmail-8.12.9/cf/cf
    ##### using ../ as configuration include directory
    #####
    ######################################################################
    #####
    ##### DO NOT EDIT THIS FILE! Only edit the source .mc file.
    #####
    ######################################################################
    ######################################################################

    ##### $Id: cfhead.m4,v 8.108.2.2 2003/03/11 21:24:20 ca Exp $ #####
    ##### $Id: cf.m4,v 8.32 1999/02/07 07:26:14 gshapiro Exp $ #####
    ##### $Id: sendmail.mc 8.12.1 (Fil) 10/04/01 fil Exp $ #####

    ##### $Id: solaris2.m4,v 8.22 1999/09/24 21:43:53 ca Exp $ #####

    ##### $Id: no_default_msa.m4,v 8.2 2001/02/14 05:03:22 gshapiro Exp $ #####

    ##### $Id: use_cw_file.m4,v 8.11 2001/08/26 20:58:57 gshapiro Exp $ #####

    ##### $Id: stickyhost.m4,v 8.9 1999/02/07 07:26:13 gshapiro Exp $ #####

    ##### $Id: limited_masquerade.m4,v 8.9 1999/02/07 07:26:09 gshapiro Exp $ #####

    ##### $Id: nouucp.m4,v 8.13 1999/11/24 18:37:07 ca Exp $ #####

    ##### $Id: virtusertable.m4,v 8.21 2001/03/16 00:51:26 gshapiro Exp $ #####

    ##### $Id: access_db.m4,v 8.24 2002/03/06 21:50:25 ca Exp $ #####

    ##### $Id: blacklist_recipients.m4,v 8.13 1999/04/02 02:25:13 gshapiro Exp $ #####

    ##### $Id: redirect.m4,v 8.15 1999/08/06 01:47:36 gshapiro Exp $ #####

    ##### $Id: always_add_domain.m4,v 8.11 2000/09/12 22:00:53 ca Exp $ #####

    ##### $Id: masquerade_envelope.m4,v 8.9 1999/02/07 07:26:10 gshapiro Exp $ #####

    ##### $Id: accept_unresolvable_domains.m4,v 8.10 1999/02/07 07:26:07 gshapiro Exp $ #####

    ##### $Id: proto.m4,v 8.649.2.17 2003/03/28 17:20:53 ca Exp $ #####

    # level 10 config file format
    V10/Berkeley

    # override file safeties - setting this option compromises system security,
    # addressing the actual file configuration problem is preferred
    # need to set this before any file actions are encountered in the cf file
    #O DontBlameSendmail=safe

    # default LDAP map specification
    # need to set this now before any LDAP maps are defined
    #O LDAPDefaultSpec=-h localhost

    ##################
    # local info #
    ##################

    # my LDAP cluster
    # need to set this before any LDAP lookups are done (including classes)
    #D{sendmailMTACluster}$m

    Cwlocalhost
    # file containing names of hosts for which we receive email
    Fw/etc/mail/local-host-names

    # my official domain name
    # ... define this only if sendmail cannot automatically determine your domain
    #Dj$w.Foo.COM

    CP.

    # "Smart" relay host (may be null)
    DS

    # operators that cannot be in local usernames (i.e., network indicators)
    CO @ %

    # a class with just dot (for identifying canonical names)
    C..

    # a class with just a left bracket (for identifying domain literals)
    C[[

    # access_db acceptance class
    C{Accept}OK RELAY

    C{ResOk}OKR

    # Hosts for which relaying is permitted ($=R)
    FR-o /etc/mail/relay-domains

    # arithmetic map
    Karith arith
    # macro storage map
    Kmacro macro
    # possible values for TLS_connection in access map
    C{tls}VERIFY ENCR

    # dequoting map
    Kdequote dequote

    # class E: names that should be exposed as from this host, even if we masquerade
    # class L: names that should be delivered locally, even if we have a relay
    # class M: domains that should be converted to $M
    # class N: domains that should not be converted to $M
    #CL root
    F{E}/etc/mail/exposed_user
    F{L}/etc/mail/local_user

    # who I masquerade as (null for no masquerading) (see also $=M)
    DMfikus.com

    # my name for error messages
    DnMAILER-DAEMON

    # Virtual user table (maps incoming users)
    Kvirtuser hash /etc/mail/virtusertable

    # Access list database (for spam stomping)
    Kaccess hash -T<TMPF> /etc/mail/access

    CPREDIRECT

    # POP mailer is a pseudo-domain
    CPPOP

    # Configuration version number
    DZ8.12.9

    ###############
    # Options #
    ###############

    # strip message body to 7 bits on input?
    O SevenBitInput=False

    # 8-bit data handling
    #O EightBitMode=pass8

    # wait for alias file rebuild (default units: minutes)
    O AliasWait=10

    # location of alias file
    O AliasFile=/etc/mail/aliases

    # minimum number of free blocks on filesystem
    O MinFreeBlocks=100

    # maximum message size
    #O MaxMessageSize=1000000

    # substitution for space (blank) characters
    O BlankSub=.

    # avoid connecting to "expensive" mailers on initial submission?
    O HoldExpensive=False

    # checkpoint queue runs after every N successful deliveries
    #O CheckpointInterval=10

    # default delivery mode
    O DeliveryMode=background

    # error message header/file
    #O ErrorHeader=/etc/mail/error-header

    # error mode
    #O ErrorMode=print

    # save Unix-style "From_" lines at top of header?
    #O SaveFromLine=False

    # queue file mode (qf files)
    #O QueueFileMode=0600

    # temporary file mode
    O TempFileMode=0600

    # match recipients against GECOS field?
    #O MatchGECOS=False

    # maximum hop count
    #O MaxHopCount=25

    # location of help file
    O HelpFile=/etc/mail/helpfile

    # ignore dots as terminators in incoming messages?
    #O IgnoreDots=False

    # name resolver options
    #O ResolverOptions=+AAONLY

    # deliver MIME-encapsulated error messages?
    O SendMimeErrors=True

    # Forward file search path
    O ForwardPath=$z/.forward.$w:$z/.forward

    # open connection cache size
    O ConnectionCacheSize=2

    # open connection cache timeout
    O ConnectionCacheTimeout=5m

    # persistent host status directory
    #O HostStatusDirectory=.hoststat

    # single thread deliveries (requires HostStatusDirectory)?
    #O SingleThreadDelivery=False

    # use Errors-To: header?
    O UseErrorsTo=False

    # log level
    O LogLevel=9

    # send to me too, even in an alias expansion?
    #O MeToo=True

    # verify RHS in newaliases?
    O CheckAliases=False

    # default messages to old style headers if no special punctuation?
    O OldStyleHeaders=True

    # SMTP daemon options
    O DaemonPortOptions=Name=MTA

    # SMTP client options
    #O ClientPortOptions=Family=inet, Address=0.0.0.0

    # Modifiers to define {daemon_flags} for direct submissions
    #O DirectSubmissionModifiers

    # Use as mail submission program? See sendmail/SECURITY
    #O UseMSP

    # privacy flags
    O PrivacyOptions=authwarnings,novrfy,noexpn,needmailhelo

    # who (if anyone) should get extra copies of error messages
    #O PostmasterCopy=Postmaster

    # slope of queue-only function
    #O QueueFactor=600000

    # limit on number of concurrent queue runners
    #O MaxQueueChildren

    # maximum number of queue-runners per queue-grouping with multiple queues
    #O MaxRunnersPerQueue=1

    # priority of queue runners (nice(3))
    #O NiceQueueRun

    # shall we sort the queue by hostname first?
    #O QueueSortOrder=priority

    # minimum time in queue before retry
    #O MinQueueAge=30m

    # how many jobs can you process in the queue?
    #O MaxQueueRunSize=10000

    # perform initial split of envelope without checking MX records
    #O FastSplit=1

    # queue directory
    O QueueDirectory=/var/spool/mqueue

    # key for shared memory; 0 to turn off
    #O SharedMemoryKey=0

    # timeouts (many of these)
    #O Timeout.initial=5m
    O Timeout.connect=3m
    #O Timeout.aconnect=0s
    #O Timeout.iconnect=5m
    #O Timeout.helo=5m
    #O Timeout.mail=10m
    #O Timeout.rcpt=1h
    #O Timeout.datainit=5m
    #O Timeout.datablock=1h
    #O Timeout.datafinal=1h
    #O Timeout.rset=5m
    #O Timeout.quit=2m
    #O Timeout.misc=2m
    #O Timeout.command=1h
    O Timeout.ident=0
    #O Timeout.fileopen=60s
    #O Timeout.control=2m
    O Timeout.queuereturn=5d
    #O Timeout.queuereturn.normal=5d
    #O Timeout.queuereturn.urgent=2d
    #O Timeout.queuereturn.non-urgent=7d

    O Timeout.queuewarn=4h
    #O Timeout.queuewarn.normal=4h
    #O Timeout.queuewarn.urgent=1h
    #O Timeout.queuewarn.non-urgent=12h

    #O Timeout.hoststatus=30m
    #O Timeout.resolver.retrans=5s
    #O Timeout.resolver.retrans.first=5s
    #O Timeout.resolver.retrans.normal=5s
    #O Timeout.resolver.retry=4
    #O Timeout.resolver.retry.first=4
    #O Timeout.resolver.retry.normal=4
    #O Timeout.lhlo=2m
    #O Timeout.auth=10m
    #O Timeout.starttls=1h

    # time for DeliverBy; extension disabled if less than 0
    #O DeliverByMin=0

    # should we not prune routes in route-addr syntax addresses?
    #O DontPruneRoutes=False

    # queue up everything before forking?
    O SuperSafe=True

    # status file
    O StatusFile=/etc/mail/statistics

    # time zone handling:
    # if undefined, use system default
    # if defined but null, use TZ envariable passed in
    # if defined and non-null, use that info
    #O TimeZoneSpec=

    # default UID (can be username or userid:groupid)
    O DefaultUser=8:12

    # list of locations of user database file (null means no lookup)
    #O UserDatabaseSpec=/etc/mail/userdb

    # fallback MX host
    #O FallbackMXhost=fall.back.host.net

    # if we are the best MX host for a site, try it directly instead of config err
    O TryNullMXList=True

    # load average at which we just queue messages
    #O QueueLA=8

    # load average at which we refuse connections
    #O RefuseLA=12

    # load average at which we delay connections; 0 means no limit
    #O DelayLA=0

    # maximum number of children we allow at one time
    #O MaxDaemonChildren=0

    # maximum number of new connections per second
    #O ConnectionRateThrottle=0

    # work recipient factor
    #O RecipientFactor=30000

    # deliver each queued job in a separate process?
    #O ForkEachJob=False

    # work class factor
    #O ClassFactor=1800

    # work time factor
    #O RetryFactor=90000

    # default character set
    #O DefaultCharSet=iso-8859-1

    # service switch file (name hardwired on Solaris, Ultrix, OSF/1, others)
    #O ServiceSwitchFile=/etc/mail/service.switch

    # hosts file (normally /etc/hosts)
    #O HostsFile=/etc/hosts

    # dialup line delay on connection failure
    #O DialDelay=10s

    # action to take if there are no recipients in the message
    #O NoRecipientAction=add-to-undisclosed

    # chrooted environment for writing to files
    #O SafeFileEnvironment=/arch

    # are colons OK in addresses?
    #O ColonOkInAddr=True

    # shall I avoid expanding CNAMEs (violates protocols)?
    #O DontExpandCnames=False

    # SMTP initial login message (old $e macro)
    O SmtpGreetingMessage=$j; $b \n\n Fikus.com\n Does not authorize the use of its proprietary computers and computer\n networks to accept, transmit, or distribute unsolicited bulk\n e-mail sent from the internet.\n

    # UNIX initial From header format (old $l macro)
    O UnixFromLine=From $g $d

    # From: lines that have embedded newlines are unwrapped onto one line
    #O SingleLineFromHeader=False

    # Allow HELO SMTP command that does not include a host name
    #O AllowBogusHELO=False

    # Characters to be quoted in a full name phrase (@,;:\()[] are automatic)
    #O MustQuoteChars=.

    # delimiter (operator) characters (old $o macro)
    O OperatorChars=.:%@!^/[]+

    # shall I avoid calling initgroups(3) because of high NIS costs?
    #O DontInitGroups=False

    # are group-writable :include: and .forward files (un)trustworthy?
    # True (the default) means they are not trustworthy.
    #O UnsafeGroupWrites=True

    # where do errors that occur when sending errors get sent?
    #O DoubleBounceAddress=postmaster

    # where to save bounces if all else fails
    #O DeadLetterDrop=/var/tmp/dead.letter

    # what user id do we assume for the majority of the processing?
    #O RunAsUser=sendmail

    # maximum number of recipients per SMTP envelope
    #O MaxRecipientsPerMessage=100

    # limit the rate recipients per SMTP envelope are accepted
    # once the threshold number of recipients have been rejected
    #O BadRcptThrottle=20

    # shall we get local names from our installed interfaces?
    O DontProbeInterfaces=True

    # Return-Receipt-To: header implies DSN request
    #O RrtImpliesDsn=False

    # override connection address (for testing)
    #O ConnectOnlyTo=0.0.0.0

    # Trusted user for file ownership and starting the daemon
    #O TrustedUser=root

    # Control socket for daemon management
    #O ControlSocketName=/var/spool/mqueue/.control

    # Maximum MIME header length to protect MUAs
    O MaxMimeHeaderLength=256/128

    # Maximum length of the sum of all headers
    #O MaxHeadersLength=32768

    # Maximum depth of alias recursion
    #O MaxAliasRecursion=10

    # location of pid file
    #O PidFile=/var/run/sendmail.pid

    # Prefix string for the process title shown on 'ps' listings
    #O ProcessTitlePrefix=prefix

    # Data file (df) memory-buffer file maximum size
    #O DataFileBufferSize=4096

    # Transcript file (xf) memory-buffer file maximum size
    #O XscriptFileBufferSize=4096

    # lookup type to find information about local mailboxes
    #O MailboxDatabase=pw

    # list of authentication mechanisms
    #O AuthMechanisms=EXTERNAL GSSAPI KERBEROS_V4 DIGEST-MD5 CRAM-MD5

    # default authentication information for outgoing connections
    #O DefaultAuthInfo=/etc/mail/default-auth-info

    # SMTP AUTH flags
    #O AuthOptions

    # SMTP AUTH maximum encryption strength
    #O AuthMaxBits

    # SMTP STARTTLS server options
    #O TLSSrvOptions

    # Input mail filters
    O InputMailFilters=mimedefang

    # Milter options
    #O Milter.LogLevel
    O Milter.macros.connect=j, _, {daemon_name}, {if_name}, {if_addr}
    O Milter.macros.helo={tls_version}, {cipher}, {cipher_bits}, {cert_subject}, {cert_issuer}
    O Milter.macros.envfrom=i, {auth_type}, {auth_authen}, {auth_ssf}, {auth_author}, {mail_mailer}, {mail_host}, {mail_addr}
    O Milter.macros.envrcpt={rcpt_mailer}, {rcpt_host}, {rcpt_addr}

    # CA directory
    #O CACertPath
    # CA file
    #O CACertFile
    # Server Cert
    #O ServerCertFile
    # Server private key
    #O ServerKeyFile
    # Client Cert
    #O ClientCertFile
    # Client private key
    #O ClientKeyFile
    # DHParameters (only required if DSA/DH is used)
    #O DHParameters
    # Random data source (required for systems without /dev/urandom under OpenSSL)
    #O RandFile

    ############################
    # QUEUE GROUP DEFINITIONS #
    ############################

    ###########################
    # Message precedences #
    ###########################

    Pfirst-class=0
    Pspecial-delivery=100
    Plist=-30
    Pbulk=-60
    Pjunk=-100

    #####################
    # Trusted users #
    #####################

    # this is equivalent to setting class "t"
    #Ft/etc/mail/trusted-users
    Troot
    Tdaemon

    #########################
    # Format of headers #
    #########################

    H?P?Return-Path: <$g>
    HReceived: $?sfrom $s $.$?_($?s$|from $.$_)
            $.$?{auth_type}(authenticated$?{auth_ssf} bits=${auth_ssf}$.)
            $.by $j ($v/$Z)$?r with $r$. id $i$?{tls_version}
            (version=${tls_version} cipher=${cipher} bits=${cipher_bits} verify=${verify})$.$?u
            for $u; $|;
            $.$b
    H?D?Resent-Date: $a
    H?D?Date: $a
    H?F?Resent-From: $?x$x <$g>$|$g$.
    H?F?From: $?x$x <$g>$|$g$.
    H?x?Full-Name: $x
    # HPosted-Date: $a
    # H?l?Received-Date: $b
    H?M?Resent-Message-Id: <$t.$i@$j>
    H?M?Message-Id: <$t.$i@$j>

    #
    ######################################################################
    ######################################################################
    #####
    ##### REWRITING RULES
    #####
    ######################################################################
    ######################################################################

    ############################################
    ### Ruleset 3 -- Name Canonicalization ###
    ############################################
    Scanonify=3

    # handle null input (translate to <@> special case)
    R$@ $@ <@>

    # strip group: syntax (not inside angle brackets!) and trailing semicolon
    R$* $: $1 <@> mark addresses
    R$* < $* > $* <@> $: $1 < $2 > $3 unmark <addr>
    R@ $* <@> $: @ $1 unmark @host:...
    R$* [ IPv6 : $+ ] <@> $: $1 [ IPv6 : $2 ] unmark IPv6 addr
    R$* :: $* <@> $: $1 :: $2 unmark node::addr
    R:include: $* <@> $: :include: $1 unmark :include:...
    R$* : $* [ $* ] $: $1 : $2 [ $3 ] <@> remark if leading colon
    R$* : $* <@> $: $2 strip colon if marked
    R$* <@> $: $1 unmark
    R$* ; $1 strip trailing semi
    R$* < $+ :; > $* $@ $2 :; <@> catch <list:;>
    R$* < $* ; > $1 < $2 > bogus bracketed semi

    # null input now results from list:; syntax
    R$@ $@ :; <@>

    # strip angle brackets -- note RFC733 heuristic to get innermost item
    R$* $: < $1 > housekeeping <>
    R$+ < $* > < $2 > strip excess on left
    R< $* > $+ < $1 > strip excess on right
    R<> $@ < @ > MAIL FROM:<> case
    R< $+ > $: $1 remove housekeeping <>

    # strip route address <@a,@b,@c:user@d> -> <user@d>
    R@ $+ , $+ $2
    R@ [ $* ] : $+ $2
    R@ $+ : $+ $2

    # find focus for list syntax
    R $+ : $* ; @ $+ $@ $>Canonify2 $1 : $2 ; < @ $3 > list syntax
    R $+ : $* ; $@ $1 : $2; list syntax

    # find focus for @ syntax addresses
    R$+ @ $+ $: $1 < @ $2 > focus on domain
    R$+ < $+ @ $+ > $1 $2 < @ $3 > move gaze right
    R$+ < @ $+ > $@ $>Canonify2 $1 < @ $2 > already canonical

    # if we have % signs, take the rightmost one
    R$* % $* $1 @ $2 First make them all @s.
    R$* @ $* @ $* $1 % $2 @ $3 Undo all but the last.
    R$* @ $* $@ $>Canonify2 $1 < @ $2 > Insert < > and finish

    # else we must be a local name
    R$* $@ $>Canonify2 $1

    ################################################
    ### Ruleset 96 -- bottom half of ruleset 3 ###
    ################################################

    SCanonify2=96

    # handle special cases for local names
    R$* < @ localhost > $* $: $1 < @ $j . > $2 no domain at all
    R$* < @ localhost . $m > $* $: $1 < @ $j . > $2 local domain

    # check for IPv4/IPv6 domain literal
    R$* < @ [ $+ ] > $* $: $1 < @@ [ $2 ] > $3 mark [addr]
    R$* < @@ $=w > $* $: $1 < @ $j . > $3 self-literal
    R$* < @@ $+ > $* $@ $1 < @ $2 > $3 canon IP addr

    # hostnames ending in class P are always canonical
    R$* < @ $* $=P > $* $: $1 < @ $2 $3 . > $4
    R$* < @ $* $~P > $* $: $&{daemon_flags} $| $1 < @ $2 $3 > $4
    R$* CC $* $| $* < @ $+.$+ > $* $: $3 < @ $4.$5 . > $6
    R$* CC $* $| $* $: $3
    # pass to name server to make hostname canonical
    R$* $| $* < @ $* > $* $: $2 < @ $[ $3 $] > $4
    R$* $| $* $: $2

    # local host aliases and pseudo-domains are always canonical
    R$* < @ $=w > $* $: $1 < @ $2 . > $3
    R$* < @ $=M > $* $: $1 < @ $2 . > $3
    R$* < @ $={VirtHost} > $* $: $1 < @ $2 . > $3
    R$* < @ $* . . > $* $1 < @ $2 . > $3

    ##################################################
    ### Ruleset 4 -- Final Output Post-rewriting ###
    ##################################################
    Sfinal=4

    R$+ :; <@> $@ $1 : handle <list:;>
    R$* <@> $@ handle <> and list:;

    # strip trailing dot off possibly canonical name
    R$* < @ $+ . > $* $1 < @ $2 > $3

    # eliminate internal code
    R$* < @ *LOCAL* > $* $1 < @ $j > $2

    # externalize local domain info
    R$* < $+ > $* $1 $2 $3 defocus
    R@ $+ : @ $+ : $+ @ $1 , @ $2 : $3 <route-addr> canonical
    R@ $* $@ @ $1 ... and exit

    # delete duplicate local names
    R$+ % $=w @ $=w $1 @ $2 u%host@host => u@host

    ##############################################################
    ### Ruleset 97 -- recanonicalize and call ruleset zero ###
    ### (used for recursive calls) ###
    ##############################################################

    SRecurse=97
    R$* $: $>canonify $1
    R$* $@ $>parse $1

    ######################################
    ### Ruleset 0 -- Parse Address ###
    ######################################

    Sparse=0

    R$* $: $>Parse0 $1 initial parsing
    R<@> $#local $: <@> special case error msgs
    R$* $: $>ParseLocal $1 handle local hacks
    R$* $: $>Parse1 $1 final parsing

    #
    # Parse0 -- do initial syntax checking and eliminate local addresses.
    # This should either return with the (possibly modified) input
    # or return with a #error mailer. It should not return with a
    # #mailer other than the #error mailer.
    #

    SParse0
    R<@> $@ <@> special case error msgs
    R$* : $* ; <@> $#error $@ 5.1.3 $: "553 List:; syntax illegal for recipient addresses"
    R@ <@ $* > < @ $1 > catch "@@host" bogosity
    R<@ $+> $#error $@ 5.1.3 $: "553 User address required"
    R$+ <@> $#error $@ 5.1.3 $: "553 Hostname required"
    R$* $: <> $1
    R<> $* < @ [ $* ] : $+ > $* $1 < @ [ $2 ] : $3 > $4
    R<> $* < @ [ $* ] , $+ > $* $1 < @ [ $2 ] , $3 > $4
    R<> $* < @ [ $* ] $+ > $* $#error $@ 5.1.2 $: "553 Invalid address"
    R<> $* < @ [ $+ ] > $* $1 < @ [ $2 ] > $3
    R<> $* <$* : $* > $* $#error $@ 5.1.3 $: "553 Colon illegal in host name part"
    R<> $* $1
    R$* < @ . $* > $* $#error $@ 5.1.2 $: "553 Invalid host name"
    R$* < @ $* .. $* > $* $#error $@ 5.1.2 $: "553 Invalid host name"
    R$* < @ $* @ > $* $#error $@ 5.1.2 $: "553 Invalid route address"
    R$* @ $* < @ $* > $* $#error $@ 5.1.3 $: "553 Invalid route address"
    R$* , $~O $* $#error $@ 5.1.3 $: "553 Invalid route address"

    # now delete the local info -- note $=O to find characters that cause forwarding
    R$* < @ > $* $@ $>Parse0 $>canonify $1 user@ => user
    R< @ $=w . > : $* $@ $>Parse0 $>canonify $2 @here:... -> ...
    R$- < @ $=w . > $: $(dequote $1 $) < @ $2 . > dequote "foo"@here
    R< @ $+ > $#error $@ 5.1.3 $: "553 User address required"
    R$* $=O $* < @ $=w . > $@ $>Parse0 $>canonify $1 $2 $3 ...@here -> ...
    R$- $: $(dequote $1 $) < @ *LOCAL* > dequote "foo"
    R< @ *LOCAL* > $#error $@ 5.1.3 $: "553 User address required"
    R$* $=O $* < @ *LOCAL* >
                            $@ $>Parse0 $>canonify $1 $2 $3 ...@*LOCAL* -> ...
    R$* < @ *LOCAL* > $: $1

    #
    # Parse1 -- the bottom half of ruleset 0.
    #

    SParse1

    # handle numeric address spec
    R$* < @ [ $+ ] > $* $: $>ParseLocal $1 < @ [ $2 ] > $3 numeric internet spec
    R$* < @ [ $+ ] > $* $: $1 < @ [ $2 ] : $S > $3 Add smart host to path
    R$* < @ [ $+ ] : > $* $#esmtp $@ [$2] $: $1 < @ [$2] > $3 no smarthost: send
    R$* < @ [ $+ ] : $- : $*> $* $#$3 $@ $4 $: $1 < @ [$2] > $5 smarthost with mailer
    R$* < @ [ $+ ] : $+ > $* $#esmtp $@ $3 $: $1 < @ [$2] > $4 smarthost without mailer

    # handle virtual users
    R$+ $: <!> $1 Mark for lookup
    R<!> $+ < @ $={VirtHost} . > $: < $(virtuser $1 @ $2 $@ $1 $: @ $) > $1 < @ $2 . >
    R<!> $+ < @ $=w . > $: < $(virtuser $1 @ $2 $@ $1 $: @ $) > $1 < @ $2 . >
    R<@> $+ + $+ < @ $* . >
                            $: < $(virtuser $1 + + @ $3 $@ $1 $@ $2 $@ +$2 $: @ $) > $1 + $2 < @ $3 . >
    R<@> $+ + $* < @ $* . >
                            $: < $(virtuser $1 + * @ $3 $@ $1 $@ $2 $@ +$2 $: @ $) > $1 + $2 < @ $3 . >
    R<@> $+ + $* < @ $* . >
                            $: < $(virtuser $1 @ $3 $@ $1 $@ $2 $@ +$2 $: @ $) > $1 + $2 < @ $3 . >
    R<@> $+ + $+ < @ $+ . > $: < $(virtuser + + @ $3 $@ $1 $@ $2 $@ +$2 $: @ $) > $1 + $2 < @ $3 . >
    R<@> $+ + $* < @ $+ . > $: < $(virtuser + * @ $3 $@ $1 $@ $2 $@ +$2 $: @ $) > $1 + $2 < @ $3 . >
    R<@> $+ + $* < @ $+ . > $: < $(virtuser @ $3 $@ $1 $@ $2 $@ +$2 $: ! $) > $1 + $2 < @ $3 . >
    R<@> $+ < @ $+ . > $: < $(virtuser @ $2 $@ $1 $: @ $) > $1 < @ $2 . >
    R<@> $+ $: $1
    R<!> $+ $: $1
    R< error : $-.$-.$- : $+ > $* $#error $@ $1.$2.$3 $: $4
    R< error : $- $+ > $* $#error $@ $(dequote $1 $) $: $2
    R< $+ > $+ < @ $+ > $: $>Recurse $1

    # short circuit local delivery so forwarded email works

    R$+ < @ $=w . > $: < $H > $1 < @ $2 . > first try hub
    R< $+ > $+ < $+ > $>MailerToTriple < $1 > $2 < $3 > yep ....
    R< > $+ + $* < $+ > $#local $: $1 + $2 plussed name?
    R< > $+ < $+ > $#local $: @ $1 nope, local address

    # resolve fake top level domains by forwarding to other hosts
    R$+ < @ POP. > $#pop $: $1 user@POP

    # pass names that still have a host to a smarthost (if defined)
    R$* < @ $* > $* $: $>MailerToTriple < $S > $1 < @ $2 > $3 glue on smarthost name

    # deal with other remote names
    R$* < @$* > $* $#esmtp $@ $2 $: $1 < @ $2 > $3 user@host.domain

    # handle locally delivered names
    R$=L $#local $: @ $1 special local names
    R$+ $#local $: $1 regular local names

    ###########################################################################
    ### Ruleset 5 -- special rewriting after aliases have been expanded ###
    ###########################################################################

    SLocal_localaddr
    Slocaladdr=5
    R$+ $: $1 $| $>"Local_localaddr" $1
    R$+ $| $#ok $@ $1 no change
    R$+ $| $#$* $#$2
    R$+ $| $* $: $1

    # deal with plussed users so aliases work nicely
    R$+ + * $#local $@ $&h $: $1
    R$+ + $* $#local $@ + $2 $: $1 + *

    # prepend an empty "forward host" on the front
    R$+ $: <> $1

    R< > $+ $: < > < $1 <> $&h > nope, restore +detail

    R< > < $+ <> + $* > $: < > < $1 + $2 > check whether +detail
    R< > < $+ <> $* > $: < > < $1 > else discard
    R< > < $+ + $* > $* < > < $1 > + $2 $3 find the user part
    R< > < $+ > + $* $#local $@ $2 $: @ $1 strip the extra +
    R< > < $+ > $@ $1 no +detail
    R$+ $: $1 <> $&h add +detail back in

    R$+ <> + $* $: $1 + $2 check whether +detail
    R$+ <> $* $: $1 else discard
    R< local : $* > $* $: $>MailerToTriple < local : $1 > $2 no host extension
    R< error : $* > $* $: $>MailerToTriple < error : $1 > $2 no host extension

    R< $~[ : $+ > $+ $: $>MailerToTriple < $1 : $2 > $3 < @ $2 >

    R< $+ > $+ $@ $>MailerToTriple < $1 > $2 < @ $1 >

    ###################################################################
    ### Ruleset 95 -- canonify mailer:[user@]host syntax to triple ###
    ###################################################################

    SMailerToTriple=95
    R< > $* $@ $1 strip off null relay
    R< error : $-.$-.$- : $+ > $* $#error $@ $1.$2.$3 $: $4
    R< error : $- $+ > $* $#error $@ $(dequote $1 $) $: $2
    R< local : $* > $* $>CanonLocal < $1 > $2
    R< $~[ : $+ @ $+ > $*<$*>$* $# $1 $@ $3 $: $2<@$3> use literal user
    R< $~[ : $+ > $* $# $1 $@ $2 $: $3 try qualified mailer
    R< $=w > $* $@ $2 delete local host
    R< $+ > $* $#relay $@ $1 $: $2 use unqualified mailer

    ###################################################################
    ### Ruleset CanonLocal -- canonify local: syntax ###
    ###################################################################

    SCanonLocal
    # strip local host from routed addresses
    R< $* > < @ $+ > : $+ $@ $>Recurse $3
    R< $* > $+ $=O $+ < @ $+ > $@ $>Recurse $2 $3 $4

    # strip trailing dot from any host name that may appear
    R< $* > $* < @ $* . > $: < $1 > $2 < @ $3 >

    # handle local: syntax -- use old user, either with or without host
    R< > $* < @ $* > $* $#local $@ $1@$2 $: $1
    R< > $+ $#local $@ $1 $: $1

    # handle local:user@host syntax -- ignore host part
    R< $+ @ $+ > $* < @ $* > $: < $1 > $3 < @ $4 >

    # handle local:user syntax
    R< $+ > $* <@ $* > $* $#local $@ $2@$3 $: $1
    R< $+ > $* $#local $@ $2 $: $1

    ###################################################################
    ### Ruleset 93 -- convert header names to masqueraded form ###
    ###################################################################

    SMasqHdr=93

    # do not masquerade anything in class N
    R$* < @ $* $=N . > $@ $1 < @ $2 $3 . >

    # special case the users that should be exposed
    R$=E < @ *LOCAL* > $@ $1 < @ $j . > leave exposed
    R$=E < @ $=M . > $@ $1 < @ $2 . >

    # handle domain-specific masquerading
    R$* < @ $=M . > $* $: $1 < @ $2 . @ $M > $3 convert masqueraded doms
    R$* < @ *LOCAL* > $* $: $1 < @ $j . @ $M > $2
    R$* < @ $+ @ > $* $: $1 < @ $2 > $3 $M is null
    R$* < @ $+ @ $+ > $* $: $1 < @ $3 . > $4 $M is not null

    ###################################################################
    ### Ruleset 94 -- convert envelope names to masqueraded form ###
    ###################################################################

    SMasqEnv=94
    R$+ $@ $>MasqHdr $1

    ###################################################################
    ### Ruleset 98 -- local part of ruleset zero (can be null) ###
    ###################################################################

    SParseLocal=98

    # addresses sent to foo@host.REDIRECT will give a 551 error code
    R$* < @ $+ .REDIRECT. > $: $1 < @ $2 . REDIRECT . > < ${opMode} >
    R$* < @ $+ .REDIRECT. > <i> $: $1 < @ $2 . REDIRECT. >
    R$* < @ $+ .REDIRECT. > < $- > $#error $@ 5.1.1 $: "551 User has moved; please try " <$1@$2>

    ######################################################################
    ### D: LookUpDomain -- search for domain in access database
    ###
    ### Parameters:
    ### <$1> -- key (domain name)
    ### <$2> -- default (what to return if not found in db)
    ### <$3> -- mark (must be <(!|+) single-token>)
    ### ! does lookup only with tag
    ### + does lookup with and without tag
    ### <$4> -- passthru (additional data passed unchanged through)
    ######################################################################

    SD
    R<$*> <$+> <$- $-> <$*> $: < $(access $4:$1 $: ? $) > <$1> <$2> <$3 $4> <$5>
    R<?> <$+> <$+> <+ $-> <$*> $: < $(access $1 $: ? $) > <$1> <$2> <+ $3> <$4>
    R<?> <[$+.$-]> <$+> <$- $-> <$*> $@ $>D <[$1]> <$3> <$4 $5> <$6>
    R<?> <[$+::$-]> <$+> <$- $-> <$*> $: $>D <[$1]> <$3> <$4 $5> <$6>
    R<?> <[$+:$-]> <$+> <$- $-> <$*> $: $>D <[$1]> <$3> <$4 $5> <$6>
    R<?> <$+.$+> <$+> <$- $-> <$*> $@ $>D <$2> <$3> <$4 $5> <$6>
    R<?> <$+> <$+> <$- $-> <$*> $@ <$2> <$5>
    R<$* <TMPF>> <$+> <$+> <$- $-> <$*> $@ <<TMPF>> <$6>
    R<$*> <$+> <$+> <$- $-> <$*> $@ <$1> <$6>

    ######################################################################
    ### A: LookUpAddress -- search for host address in access database
    ###
    ### Parameters:
    ### <$1> -- key (dot quadded host address)
    ### <$2> -- default (what to return if not found in db)
    ### <$3> -- mark (must be <(!|+) single-token>)
    ### ! does lookup only with tag
    ### + does lookup with and without tag
    ### <$4> -- passthru (additional data passed through)
    ######################################################################

    SA
    R<$+> <$+> <$- $-> <$*> $: < $(access $4:$1 $: ? $) > <$1> <$2> <$3 $4> <$5>
    R<?> <$+> <$+> <+ $-> <$*> $: < $(access $1 $: ? $) > <$1> <$2> <+ $3> <$4>
    R<?> <$+::$-> <$+> <$- $-> <$*> $@ $>A <$1> <$3> <$4 $5> <$6>
    R<?> <$+:$-> <$+> <$- $-> <$*> $@ $>A <$1> <$3> <$4 $5> <$6>
    R<?> <$+.$-> <$+> <$- $-> <$*> $@ $>A <$1> <$3> <$4 $5> <$6>
    R<?> <$+> <$+> <$- $-> <$*> $@ <$2> <$5>
    R<$* <TMPF>> <$+> <$+> <$- $-> <$*> $@ <<TMPF>> <$6>
    R<$*> <$+> <$+> <$- $-> <$*> $@ <$1> <$6>

    ######################################################################
    ### CanonAddr -- Convert an address into a standard form for
    ### relay checking. Route address syntax is
    ### crudely converted into a %-hack address.
    ###
    ### Parameters:
    ### $1 -- full recipient address
    ###
    ### Returns:
    ### parsed address, not in source route form
    ######################################################################

    SCanonAddr
    R$* $: $>Parse0 $>canonify $1 make domain canonical

    ######################################################################
    ### ParseRecipient -- Strip off hosts in $=R as well as possibly
    ### $* $=m or the access database.
    ### Check user portion for host separators.
    ###
    ### Parameters:
    ### $1 -- full recipient address
    ###
    ### Returns:
    ### parsed, non-local-relaying address
    ######################################################################

    SParseRecipient
    R$* $: <?> $>CanonAddr $1
    R<?> $* < @ $* . > <?> $1 < @ $2 > strip trailing dots
    R<?> $- < @ $* > $: <?> $(dequote $1 $) < @ $2 > dequote local part

    # if no $=O character, no host in the user portion, we are done
    R<?> $* $=O $* < @ $* > $: <NO> $1 $2 $3 < @ $4>
    R<?> $* $@ $1

    R<NO> $* < @ $* $=R > $: <RELAY> $1 < @ $2 $3 >
    R<NO> $* < @ $+ > $: $>D <$2> <NO> <+ To> <$1 < @ $2 >>
    R<$+> <$+> $: <$1> $2

    R<RELAY> $* < @ $* > $@ $>ParseRecipient $1
    R<$+> $* $@ $2

    ######################################################################
    ### check_relay -- check hostname/address on SMTP startup
    ######################################################################

    SLocal_check_relay
    Scheck_relay
    R$* $: $1 $| $>"Local_check_relay" $1
    R$* $| $* $| $#$* $#$3
    R$* $| $* $| $* $@ $>"Basic_check_relay" $1 $| $2

    SBasic_check_relay
    # check for deferred delivery mode
    R$* $: < $&{deliveryMode} > $1
    R< d > $* $@ deferred
    R< $* > $* $: $2

    R$+ $| $+ $: $>D < $1 > <?> <+ Connect> < $2 >
    R $| $+ $: $>A < $1 > <?> <+ Connect> <> empty client_name
    R<?> <$+> $: $>A < $1 > <?> <+ Connect> <> no: another lookup
    R<?> <$*> $: OK found nothing
    R<$={Accept}> <$*> $@ $1 return value of lookup
    R<REJECT> <$*> $#error $@ 5.7.1 $: "550 Access denied"
    R<DISCARD> <$*> $#discard $: discard
    R<ERROR:$-.$-.$-:$+> <$*> $#error $@ $1.$2.$3 $: $4
    R<ERROR:$+> <$*> $#error $: $1
    R<$* <TMPF>> <$*> $#error $@ 4.3.0 $: "451 Temporary system failure. Please try again later."
    R<$+> <$*> $#error $: $1

    ######################################################################
    ### check_mail -- check SMTP `MAIL FROM:' command argument
    ######################################################################

    SLocal_check_mail
    Scheck_mail
    R$* $: $1 $| $>"Local_check_mail" $1
    R$* $| $#$* $#$2
    R$* $| $* $@ $>"Basic_check_mail" $1

    SBasic_check_mail
    # check for deferred delivery mode
    R$* $: < $&{deliveryMode} > $1
    R< d > $* $@ deferred
    R< $* > $* $: $2

    # authenticated?
    R$* $: $1 $| $>"tls_client" $&{verify} $| MAIL
    R$* $| $#$+ $#$2
    R$* $| $* $: $1

    R<> $@ <OK> we MUST accept <> (RFC 1123)
    R$+ $: <?> $1
    R<?><$+> $: <@> <$1>
    R<?>$+ $: <@> <$1>
    R$* $: $&{daemon_flags} $| $1
    R$* f $* $| <@> < $* @ $- > $: < ? $&{client_name} > < $3 @ $4 >
    R$* u $* $| <@> < $* > $: <?> < $3 >
    R$* $| $* $: $2
    # handle case of @localhost on address
    R<@> < $* @ localhost > $: < ? $&{client_name} > < $1 @ localhost >
    R<@> < $* @ [127.0.0.1] >
                            $: < ? $&{client_name} > < $1 @ [127.0.0.1] >
    R<@> < $* @ localhost.$m >
                            $: < ? $&{client_name} > < $1 @ localhost.$m >
    R<@> $* $: $1 no localhost as domain
    R<? $=w> $* $: $2 local client: ok
    R<? $+> <$+> $#error $@ 5.5.4 $: "553 Real domain name required for sender address"
    R<?> $* $: $1
    R$* $: <?> $>CanonAddr $1 canonify sender address and mark it
    R<?> $* < @ $+ . > <?> $1 < @ $2 > strip trailing dots
    # handle non-DNS hostnames (*.bitnet, *.decnet, *.uucp, etc)
    R<?> $* < @ $* $=P > $: <OKR> $1 < @ $2 $3 >
    R<?> $* < @ $j > $: <OKR> $1 < @ $j >
    R<?> $* < @ $+ > $: <OKR> $1 < @ $2 > ... unresolvable OK

    # check sender address: user@address, user@, address
    R<$+> $+ < @ $* > $: @<$1> <$2 < @ $3 >> $| <F:$2@$3> <U:$2@> <D:$3>
    R<$+> $+ $: @<$1> <$2> $| <U:$2@>
    R@ <$+> <$*> $| <$+> $: <@> <$1> <$2> $| $>SearchList <+ From> $| <$3> <>
    R<@> <$+> <$*> $| <$*> $: <$3> <$1> <$2> reverse result
    # retransform for further use
    R<?> <$+> <$*> $: <$1> $2 no match
    R<$+> <$+> <$*> $: <$1> $3 relevant result, keep it

    # handle case of no @domain on address
    R<?> $* $: $&{daemon_flags} $| <?> $1
    R$* u $* $| <?> $* $: <OKR> $3
    R$* $| $* $: $2
    R<?> $* $: < ? $&{client_addr} > $1
    R<?> $* $@ <OKR> ...local unqualed ok
    R<? $+> $* $#error $@ 5.5.4 $: "553 Domain name required for sender address " $&f
                                                            ...remote is not
    # check results
    R<?> $* $: @ $1 mark address: nothing known about it
    R<$={ResOk}> $* $@ <OKR> domain ok: stop
    R<TEMP> $* $#error $@ 4.1.8 $: "451 Domain of sender address " $&f " does not resolve"
    R<PERM> $* $#error $@ 5.1.8 $: "553 Domain of sender address " $&f " does not exist"
    R<$={Accept}> $* $# $1 accept from access map
    R<DISCARD> $* $#discard $: discard
    R<REJECT> $* $#error $@ 5.7.1 $: "550 Access denied"
    R<ERROR:$-.$-.$-:$+> $* $#error $@ $1.$2.$3 $: $4
    R<ERROR:$+> $* $#error $: $1
    R<<TMPF>> $* $#error $@ 4.3.0 $: "451 Temporary system failure. Please try again later."
    R<$+> $* $#error $: $1 error from access db

    ######################################################################
    ### check_rcpt -- check SMTP `RCPT TO:' command argument
    ######################################################################

    SLocal_check_rcpt
    Scheck_rcpt
    R$* $: $1 $| $>"Local_check_rcpt" $1
    R$* $| $#$* $#$2
    R$* $| $* $@ $>"Basic_check_rcpt" $1

    SBasic_check_rcpt
    # empty address?
    R<> $#error $@ nouser $: "553 User address required"
    R$@ $#error $@ nouser $: "553 User address required"
    # check for deferred delivery mode
    R$* $: < $&{deliveryMode} > $1
    R< d > $* $@ deferred
    R< $* > $* $: $2

    ######################################################################
    R$* $: $1 $| @ $>"Rcpt_ok" $1
    R$* $| @ $#TEMP $+ $: $1 $| T $2
    R$* $| @ $#$* $#$2
    R$* $| @ RELAY $@ RELAY
    R$* $| @ $* $: O $| $>"Relay_ok" $1
    R$* $| T $+ $: T $2 $| $>"Relay_ok" $1
    R$* $| $#TEMP $+ $#error $2
    R$* $| $#$* $#$2
    R$* $| RELAY $@ RELAY
    R T $+ $| $* $#error $1
    # anything else is bogus
    R$* $#error $@ 5.7.1 $: "550 Relaying denied"

    ######################################################################
    ### Rcpt_ok: is the recipient ok?
    ######################################################################
    SRcpt_ok
    R$* $: $>ParseRecipient $1 strip relayable hosts

    # blacklist local users or any host from receiving mail
    R$* $: <?> $1
    R<?> $+ < @ $=w > $: <> <$1 < @ $2 >> $| <F:$1@$2> <U:$1@> <D:$2>
    R<?> $+ < @ $* > $: <> <$1 < @ $2 >> $| <F:$1@$2> <D:$2>
    R<?> $+ $: <> <$1> $| <U:$1@>
    R<> <$*> $| <$+> $: <@> <$1> $| $>SearchList <+ To> $| <$2> <>
    R<@> <$*> $| <$*> $: <$2> <$1> reverse result
    R<?> <$*> $: @ $1 mark address as no match
    R<$={Accept}> <$*> $: @ $2 mark address as no match

    R<REJECT> $* $#error $@ 5.2.1 $: "550 Mailbox disabled for this recipient"
    R<DISCARD> $* $#discard $: discard
    R<ERROR:$-.$-.$-:$+> $* $#error $@ $1.$2.$3 $: $4
    R<ERROR:$+> $* $#error $: $1
    R<<TMPF>> $* $#error $@ 4.3.0 $: "451 Temporary system failure. Please try again later."
    R<$+> $* $#error $: $1 error from access db
    R@ $* $1 remove mark

    # authenticated via TLS?
    R$* $: $1 $| $>RelayTLS client authenticated?
    R$* $| $# $+ $# $2 error/ok?
    R$* $| $* $: $1 no

    R$* $: $1 $| $>"Local_Relay_Auth" $&{auth_type}
    R$* $| $# $* $# $2
    R$* $| NO $: $1
    R$* $| $* $: $1 $| $&{auth_type}
    R$* $| $: $1
    R$* $| $={TrustAuthMech} $# RELAY
    R$* $| $* $: $1
    R$* ! $* < @ $* > $: <REMOTE> $2 < @ BANG_PATH >
    R$* ! $* $: <REMOTE> $2 < @ BANG_PATH >
    # anything terminating locally is ok
    R$+ < @ $=w > $@ RELAY
    R$+ < @ $* $=R > $@ RELAY
    R$+ < @ $+ > $: $>D <$2> <?> <+ To> <$1 < @ $2 >>
    R<RELAY> $* $@ RELAY
    R<$* <TMPF>> $* $#TEMP $@ 4.3.0 $: "451 Temporary system failure. Please try again later."
    R<$*> <$*> $: $2

    # check for local user (i.e. unqualified address)
    R$* $: <?> $1
    R<?> $* < @ $+ > $: <REMOTE> $1 < @ $2 >
    # local user is ok
    R<?> $+ $@ RELAY
    R<$+> $* $: $2

    ######################################################################
    ### Relay_ok: is the relay/sender ok?
    ######################################################################
    SRelay_ok
    # anything originating locally is ok
    # check IP address
    R$* $: $&{client_addr}
    R$@ $@ RELAY originated locally
    R0 $@ RELAY originated locally
    R127.0.0.1 $@ RELAY originated locally
    RIPv6:::1 $@ RELAY originated locally
    R$=R $* $@ RELAY relayable IP address
    R$* $: $>A <$1> <?> <+ Connect> <$1>
    R<RELAY> $* $@ RELAY relayable IP address

    R<<TMPF>> $* $#TEMP $@ 4.3.0 $: "451 Temporary system failure. Please try again later."
    R<$*> <$*> $: $2
    R$* $: [ $1 ] put brackets around it...
    R$=w $@ RELAY ... and see if it is local

    # check client name: first: did it resolve?
    R$* $: < $&{client_resolve} >
    R<TEMP> $#TEMP $@ 4.7.1 $: "450 Relaying temporarily denied. Cannot resolve PTR record for " $&{client_addr}
    R<FORGED> $#error $@ 5.7.1 $: "550 Relaying denied. IP name possibly forged " $&{client_name}
    R<FAIL> $#error $@ 5.7.1 $: "550 Relaying denied. IP name lookup failed " $&{client_name}
    R$* $: <@> $&{client_name}
    # pass to name server to make hostname canonical
    R<@> $* $=P $:<?> $1 $2
    R<@> $+ $:<?> $[ $1 $]
    R$* . $1 strip trailing dots
    R<?> $=w $@ RELAY
    R<?> $* $=R $@ RELAY
    R<?> $* $: $>D <$1> <?> <+ Connect> <$1>
    R<RELAY> $* $@ RELAY
    R<$* <TMPF>> $* $#TEMP $@ 4.3.0 $: "451 Temporary system failure. Please try again later."
    R<$*> <$*> $: $2

    ######################################################################
    ### F: LookUpFull -- search for an entry in access database
    ###
    ### lookup of full key (which should be an address) and
    ### variations if +detail exists: +* and without +detail
    ###
    ### Parameters:
    ### <$1> -- key
    ### <$2> -- default (what to return if not found in db)
    ### <$3> -- mark (must be <(!|+) single-token>)
    ### ! does lookup only with tag
    ### + does lookup with and without tag
    ### <$4> -- passthru (additional data passed unchanged through)
    ######################################################################

    SF
    R<$+> <$*> <$- $-> <$*> $: <$(access $4:$1 $: ? $)> <$1> <$2> <$3 $4> <$5>
    R<?> <$+> <$*> <+ $-> <$*> $: <$(access $1 $: ? $)> <$1> <$2> <+ $3> <$4>
    R<?> <$+ + $* @ $+> <$*> <$- $-> <$*>
                            $: <$(access $6:$1+*@$3 $: ? $)> <$1+$2@$3> <$4> <$5 $6> <$7>
    R<?> <$+ + $* @ $+> <$*> <+ $-> <$*>
                            $: <$(access $1+*@$3 $: ? $)> <$1+$2@$3> <$4> <+ $5> <$6>
    R<?> <$+ + $* @ $+> <$*> <$- $-> <$*>
                            $: <$(access $6:$1@$3 $: ? $)> <$1+$2@$3> <$4> <$5 $6> <$7>
    R<?> <$+ + $* @ $+> <$*> <+ $-> <$*>
                            $: <$(access $1@$3 $: ? $)> <$1+$2@$3> <$4> <+ $5> <$6>
    R<?> <$+> <$*> <$- $-> <$*> $@ <$2> <$5>
    R<$+ <TMPF>> <$*> <$- $-> <$*> $@ <<TMPF>> <$5>
    R<$+> <$*> <$- $-> <$*> $@ <$1> <$5>

    ######################################################################
    ### E: LookUpExact -- search for an entry in access database
    ###
    ### Parameters:
    ### <$1> -- key
    ### <$2> -- default (what to return if not found in db)
    ### <$3> -- mark (must be <(!|+) single-token>)
    ### ! does lookup only with tag
    ### + does lookup with and without tag
    ### <$4> -- passthru (additional data passed unchanged through)
    ######################################################################

    SE
    R<$*> <$*> <$- $-> <$*> $: <$(access $4:$1 $: ? $)> <$1> <$2> <$3 $4> <$5>
    R<?> <$+> <$*> <+ $-> <$*> $: <$(access $1 $: ? $)> <$1> <$2> <+ $3> <$4>
    R<?> <$+> <$*> <$- $-> <$*> $@ <$2> <$5>
    R<$+ <TMPF>> <$*> <$- $-> <$*> $@ <<TMPF>> <$5>
    R<$+> <$*> <$- $-> <$*> $@ <$1> <$5>

    ######################################################################
    ### U: LookUpUser -- search for an entry in access database
    ###
    ### lookup of key (which should be a local part) and
    ### variations if +detail exists: +* and without +detail
    ###
    ### Parameters:
    ### <$1> -- key (user@)
    ### <$2> -- default (what to return if not found in db)
    ### <$3> -- mark (must be <(!|+) single-token>)
    ### ! does lookup only with tag
    ### + does lookup with and without tag
    ### <$4> -- passthru (additional data passed unchanged through)
    ######################################################################

    SU
    R<$+> <$*> <$- $-> <$*> $: <$(access $4:$1 $: ? $)> <$1> <$2> <$3 $4> <$5>
    R<?> <$+> <$*> <+ $-> <$*> $: <$(access $1 $: ? $)> <$1> <$2> <+ $3> <$4>
    R<?> <$+ + $* @> <$*> <$- $-> <$*>
                            $: <$(access $5:$1+*@ $: ? $)> <$1+$2@> <$3> <$4 $5> <$6>
    R<?> <$+ + $* @> <$*> <+ $-> <$*>
                            $: <$(access $1+*@ $: ? $)> <$1+$2@> <$3> <+ $4> <$5>
    R<?> <$+ + $* @> <$*> <$- $-> <$*>
                            $: <$(access $5:$1@ $: ? $)> <$1+$2@> <$3> <$4 $5> <$6>
    R<?> <$+ + $* @> <$*> <+ $-> <$*>
                            $: <$(access $1@ $: ? $)> <$1+$2@> <$3> <+ $4> <$5>
    R<?> <$+> <$*> <$- $-> <$*> $@ <$2> <$5>
    R<$+ <TMPF>> <$*> <$- $-> <$*> $@ <<TMPF>> <$5>
    R<$+> <$*> <$- $-> <$*> $@ <$1> <$5>

    ######################################################################
    ### SearchList: search a list of items in the access map
    ### Parameters:
    ### <exact tag> $| <mark:address> <mark:address> ... <>
    ### where "exact" is either "+" or "!":
    ### <+ TAG> lookup with and w/o tag
    ### <! TAG> lookup with tag
    ### possible values for "mark" are:
    ### D: recursive host lookup (LookUpDomain)
    ### E: exact lookup, no modifications
    ### F: full lookup, try user+ext@domain and user@domain
    ### U: user lookup, try user+ext and user (input must have trailing @)
    ### return: <RHS of lookup> or <?> (not found)
    ######################################################################

    # class with valid marks for SearchList
    C{src}E F D U
    SSearchList
    # just call the ruleset with the name of the tag... nice trick...
    R<$+> $| <$={src}:$*> <$*> $: <$1> $| <$4> $| $>$2 <$3> <?> <$1> <>
    R<$+> $| <> $| <?> <> $@ <?>
    R<$+> $| <$+> $| <?> <> $@ $>SearchList <$1> $| <$2>
    R<$+> $| <$*> $| <$+> <> $@ <$3>
    R<$+> $| <$+> $@ <$2>

    ######################################################################
    ### trust_auth: is user trusted to authenticate as someone else?
    ###
    ### Parameters:
    ### $1: AUTH= parameter from MAIL command
    ######################################################################

    SLocal_trust_auth
    Strust_auth
    R$* $: $&{auth_type} $| $1
    # required by RFC 2554 section 4.
    R$@ $| $* $#error $@ 5.7.1 $: "550 not authenticated"
    R$* $| $&{auth_authen} $@ identical
    R$* $| <$&{auth_authen}> $@ identical
    R$* $| $* $: $1 $| $>"Local_trust_auth" $1
    R$* $| $#$* $#$2
    R$* $#error $@ 5.7.1 $: "550 " $&{auth_authen} " not allowed to act as " $&{auth_author}

    ######################################################################
    ### Relay_Auth: allow relaying based on authentication?
    ###
    ### Parameters:
    ### $1: ${auth_type}
    ######################################################################
    SLocal_Relay_Auth

    ######################################################################
    ### srv_features: which features to offer to a client?
    ### (done in server)
    ######################################################################
    Ssrv_features
    R$* $: $>D <$&{client_name}> <?> <! "Srv_Features"> <>
    R<?>$* $: $>A <$&{client_addr}> <?> <! "Srv_Features"> <>
    R<?>$* $: <$(access "Srv_Features": $: ? $)>
    R<?>$* $@ OK
    R<$* <TMPF>>$* $#temp
    R<$+>$* $# $1

    ######################################################################
    ### try_tls: try to use STARTTLS?
    ### (done in client)
    ######################################################################
    Stry_tls
    R$* $: $>D <$&{server_name}> <?> <! "Try_TLS"> <>
    R<?>$* $: $>A <$&{server_addr}> <?> <! "Try_TLS"> <>
    R<?>$* $: <$(access "Try_TLS": $: ? $)>
    R<?>$* $@ OK
    R<$* <TMPF>>$* $#error $@ 4.3.0 $: "451 Temporary system failure. Please try again later."
    R<NO>$* $#error $@ 5.7.1 $: "550 do not try TLS with " $&{server_name} " ["$&{server_addr}"]"

    ######################################################################
    ### tls_rcpt: is connection with server "good" enough?
    ### (done in client, per recipient)
    ###
    ### Parameters:
    ### $1: recipient
    ######################################################################
    Stls_rcpt
    R$* $: $(macro {TLS_Name} $@ $&{server_name} $) $1
    R$+ $: <?> $>CanonAddr $1
    R<?> $+ < @ $+ . > <?> $1 <@ $2 >
    R<?> $+ < @ $+ > $: $1 <@ $2 > $| <F:$1@$2> <U:$1@> <D:$2> <E:>
    R<?> $+ $: $1 $| <U:$1@> <E:>
    R$* $| $+ $: $1 $| $>SearchList <! "TLS_Rcpt"> $| $2 <>
    R$* $| <?> $@ OK
    R$* $| <$* <TMPF>> $#error $@ 4.3.0 $: "451 Temporary system failure. Please try again later."
    R$* $| <$+> $@ $>"TLS_connection" $&{verify} $| <$2>

    ######################################################################
    ### tls_client: is connection with client "good" enough?
    ### (done in server)
    ###
    ### Parameters:
    ### ${verify} $| (MAIL|STARTTLS)
    ######################################################################
    Stls_client
    R$* $: $(macro {TLS_Name} $@ $&{server_name} $) $1
    R$* $| $* $: $1 $| $>D <$&{client_name}> <?> <! "TLS_Clt"> <>
    R$* $| <?>$* $: $1 $| $>A <$&{client_addr}> <?> <! "TLS_Clt"> <>
    R$* $| <?>$* $: $1 $| <$(access "TLS_Clt": $: ? $)>
    R$* $| <$* <TMPF>> $#error $@ 4.3.0 $: "451 Temporary system failure. Please try again later."
    R$* $@ $>"TLS_connection" $1

    ######################################################################
    ### tls_server: is connection with server "good" enough?
    ### (done in client)
    ###
    ### Parameter:
    ### ${verify}
    ######################################################################
    Stls_server
    R$* $: $(macro {TLS_Name} $@ $&{server_name} $) $1
    R$* $: $1 $| $>D <$&{server_name}> <?> <! "TLS_Srv"> <>
    R$* $| <?>$* $: $1 $| $>A <$&{server_addr}> <?> <! "TLS_Srv"> <>
    R$* $| <?>$* $: $1 $| <$(access "TLS_Srv": $: ? $)>
    R$* $| <$* <TMPF>> $#error $@ 4.3.0 $: "451 Temporary system failure. Please try again later."
    R$* $@ $>"TLS_connection" $1

    ######################################################################
    ### TLS_connection: is TLS connection "good" enough?
    ###
    ### Parameters:
    ### ${verify} $| <Requirement> [<>]
    ### Requirement: RHS from access map, may be ? for none.
    ######################################################################
    STLS_connection
    R$* $| <$*>$* $: $1 $| <$2>
    # create the appropriate error codes
    R$* $| <PERM + $={tls} $*> $: $1 $| <503:5.7.0> <$2 $3>
    R$* $| <TEMP + $={tls} $*> $: $1 $| <403:4.7.0> <$2 $3>
    R$* $| <$={tls} $*> $: $1 $| <403:4.7.0> <$2 $3>
    # deal with TLS handshake failures: abort
    RSOFTWARE $| <$-:$+> $* $#error $@ $2 $: $1 " TLS handshake failed."
    RSOFTWARE $| $* $#error $@ 4.7.0 $: "403 TLS handshake failed."
    R$* $| <$*> <VERIFY> $: <$2> <VERIFY> <> $1
    R$* $| <$*> <VERIFY + $+> $: <$2> <VERIFY> <$3> $1
    R$* $| <$*> <$={tls}:$->$* $: <$2> <$3:$4> <> $1
    R$* $| <$*> <$={tls}:$- + $+>$* $: <$2> <$3:$4> <$5> $1
    R$* $| $* $@ OK
    # authentication required: give appropriate error
    # other side did authenticate (via STARTTLS)
    R<$*><VERIFY> <> OK $@ OK
    R<$*><VERIFY> <$+> OK $: <$1> <REQ:0> <$2>
    R<$*><VERIFY:$-> <$*> OK $: <$1> <REQ:$2> <$3>
    R<$*><ENCR:$-> <$*> $* $: <$1> <REQ:$2> <$3>
    R<$-:$+><VERIFY $*> <$*> $#error $@ $2 $: $1 " authentication required"
    R<$-:$+><VERIFY $*> <$*> FAIL $#error $@ $2 $: $1 " authentication failed"
    R<$-:$+><VERIFY $*> <$*> NO $#error $@ $2 $: $1 " not authenticated"
    R<$-:$+><VERIFY $*> <$*> NOT $#error $@ $2 $: $1 " no authentication requested"
    R<$-:$+><VERIFY $*> <$*> NONE $#error $@ $2 $: $1 " other side does not support STARTTLS"
    R<$-:$+><VERIFY $*> <$*> $+ $#error $@ $2 $: $1 " authentication failure " $4
    R<$*><REQ:$-> <$*> $: <$1> <REQ:$2> <$3> $>max $&{cipher_bits} : $&{auth_ssf}
    R<$*><REQ:$-> <$*> $- $: <$1> <$2:$4> <$3> $(arith l $@ $4 $@ $2 $)
    R<$-:$+><$-:$-> <$*> TRUE $#error $@ $2 $: $1 " encryption too weak " $4 " less than " $3
    R<$-:$+><$-:$-> <$*> $* $: <$1:$2 ++ $5>
    R<$-:$+ ++ > $@ OK
    R<$-:$+ ++ $+ > $: <$1:$2> <$3>
    R<$-:$+> < $+ ++ $+ > <$1:$2> <$3> <$4>
    R<$-:$+> $+ $@ $>"TLS_req" $3 $| <$1:$2>

    ######################################################################
    ### TLS_req: check additional TLS requirements
    ###
    ### Parameters: [<list> <of> <req>] $| <$-:$+>
    ### $-: SMTP reply code
    ### $+: Enhanced Status Code
    ######################################################################
    STLS_req
    R $| $+ $@ OK
    R<CN> $* $| <$+> $: <CN:$&{TLS_Name}> $1 $| <$2>
    R<CN:$&{cn_subject}> $* $| <$+> $@ $>"TLS_req" $1 $| <$2>
    R<CN:$+> $* $| <$-:$+> $#error $@ $4 $: $3 " CN " $&{cn_subject} " does not match " $1
    R<CS:$&{cert_subject}> $* $| <$+> $@ $>"TLS_req" $1 $| <$2>
    R<CS:$+> $* $| <$-:$+> $#error $@ $4 $: $3 " Cert Subject " $&{cert_subject} " does not match " $1
    R<CI:$&{cert_issuer}> $* $| <$+> $@ $>"TLS_req" $1 $| <$2>
    R<CI:$+> $* $| <$-:$+> $#error $@ $4 $: $3 " Cert Issuer " $&{cert_issuer} " does not match " $1
    ROK $@ OK

    ######################################################################
    ### max: return the maximum of two values separated by :
    ###
    ### Parameters: [$-]:[$-]
    ######################################################################
    Smax
    R: $: 0
    R:$- $: $1
    R$-: $: $1
    R$-:$- $: $(arith l $@ $1 $@ $2 $) : $1 : $2
    RTRUE:$-:$- $: $2
    R$-:$-:$- $: $2

    ######################################################################
    ### RelayTLS: allow relaying based on TLS authentication
    ###
    ### Parameters:
    ### none
    ######################################################################
    SRelayTLS
    # authenticated?
    R$* $: <?> $&{verify}
    R<?> OK $: OK authenticated: continue
    R<?> $* $@ NO not authenticated
    R$* $: $&{cert_issuer}
    R$+ $: $(access CERTISSUER:$1 $)
    RRELAY $# RELAY
    RSUBJECT $: <@> $&{cert_subject}
    R<@> $+ $: <@> $(access CERTSUBJECT:$1 $)
    R<@> RELAY $# RELAY
    R$* $: NO

    ######################################################################
    ### authinfo: lookup authinfo in the access map
    ###
    ### Parameters:
    ### $1: {server_name}
    ### $2: {server_addr}
    ######################################################################
    Sauthinfo
    R$* $: $1 $| $>D <$&{server_name}> <?> <! AuthInfo> <>
    R$* $| <?>$* $: $1 $| $>A <$&{server_addr}> <?> <! AuthInfo> <>
    R$* $| <?>$* $: $1 $| <$(access AuthInfo: $: ? $)> <>
    R$* $| <?>$* $@ no no authinfo available
    R$* $| <$*> <> $# $2

    #
    ######################################################################
    ######################################################################
    #####
    ##### MAIL FILTER DEFINITIONS
    #####
    ######################################################################
    ######################################################################

    Xmimedefang, S=:/var/spool/MIMEDefang/mimedefang.sock, F=T, T=S:60s;R:60s;E:5m
    #
    ######################################################################
    ######################################################################
    #####
    ##### MAILER DEFINITIONS
    #####
    ######################################################################
    ######################################################################

    ##################################################
    ### Local and Program Mailer specification ###
    ##################################################

    ##### $Id: local.m4,v 8.58 2000/10/26 01:58:29 ca Exp $ #####

    #
    # Envelope sender rewriting
    #
    SEnvFromL
    R<@> $n errors to mailer-daemon
    R@ <@ $*> $n temporarily bypass Sun bogosity
    R$+ $: $>AddDomain $1 add local domain if needed
    R$* $: $>MasqEnv $1 do masquerading

    #
    # Envelope recipient rewriting
    #
    SEnvToL
    R$+ < @ $* > $: $1 strip host part
    R$+ + $* $: < $&{addr_type} > $1 + $2 mark with addr type
    R<e s> $+ + $* $: $1 remove +detail for sender
    R< $* > $+ $: $2 else remove mark

    #
    # Header sender rewriting
    #
    SHdrFromL
    R<@> $n errors to mailer-daemon
    R@ <@ $*> $n temporarily bypass Sun bogosity
    R$+ $: $>AddDomain $1 add local domain if needed
    R$* $: $>MasqHdr $1 do masquerading

    #
    # Header recipient rewriting
    #
    SHdrToL
    R$+ $: $>AddDomain $1 add local domain if needed
    R$* < @ *LOCAL* > $* $: $1 < @ $j . > $2

    #
    # Common code to add local domain name (only if always-add-domain)
    #
    SAddDomain
    R$* < @ $* > $* $@ $1 < @ $2 > $3 already fully qualified

    R$+ $@ $1 < @ *LOCAL* > add local qualification

    Mlocal, P=/usr/lib/mail.local, F=lsDFMAw5:/|@qfSmn9, S=EnvFromL/HdrFromL, R=EnvToL/HdrToL,
                    M=5242880, T=DNS/RFC822/X-Unix,
                    A=mail.local -d $u
    Mprog, P=/bin/sh, F=lsDFMoqeu9, S=EnvFromL/HdrFromL, R=EnvToL/HdrToL, D=$z:/,
                    M=5242880, T=X-Unix/X-Unix/X-Unix,
                    A=sh -c $u

    #####################################
    ### SMTP Mailer specification ###
    #####################################

    ##### $Id: smtp.m4,v 8.64 2001/04/03 01:52:54 gshapiro Exp $ #####

    #
    # common sender and masquerading recipient rewriting
    #
    SMasqSMTP
    R$* < @ $* > $* $@ $1 < @ $2 > $3 already fully qualified
    R$+ $@ $1 < @ *LOCAL* > add local qualification

    #
    # convert pseudo-domain addresses to real domain addresses
    #
    SPseudoToReal

    # pass <route-addr>s through
    R< @ $+ > $* $@ < @ $1 > $2 resolve <route-addr>

    # output fake domains as user%fake@relay

    #
    # envelope sender rewriting
    #
    SEnvFromSMTP
    R$+ $: $>PseudoToReal $1 sender/recipient common
    R$* :; <@> $@ list:; special case
    R$* $: $>MasqSMTP $1 qualify unqual'ed names
    R$+ $: $>MasqEnv $1 do masquerading

    #
    # envelope recipient rewriting --
    # also header recipient if not masquerading recipients
    #
    SEnvToSMTP
    R$+ $: $>PseudoToReal $1 sender/recipient common
    R$+ $: $>MasqSMTP $1 qualify unqual'ed names
    R$* < @ *LOCAL* > $* $: $1 < @ $j . > $2

    #
    # header sender and masquerading header recipient rewriting
    #
    SHdrFromSMTP
    R$+ $: $>PseudoToReal $1 sender/recipient common
    R:; <@> $@ list:; special case

    # do special header rewriting
    R$* <@> $* $@ $1 <@> $2 pass null host through
    R< @ $* > $* $@ < @ $1 > $2 pass route-addr through
    R$* $: $>MasqSMTP $1 qualify unqual'ed names
    R$+ $: $>MasqHdr $1 do masquerading

    #
    # relay mailer header masquerading recipient rewriting
    #
    SMasqRelay
    R$+ $: $>MasqSMTP $1
    R$+ $: $>MasqHdr $1

    Msmtp, P=[IPC], F=mDFMuX, S=EnvFromSMTP/HdrFromSMTP, R=EnvToSMTP, E=\r\n, L=990,
                    M=5242880, m=6, r=6, T=DNS/RFC822/SMTP,
                    A=TCP $h
    Mesmtp, P=[IPC], F=mDFMuXa, S=EnvFromSMTP/HdrFromSMTP, R=EnvToSMTP, E=\r\n, L=990,
                    M=5242880, m=6, r=6, T=DNS/RFC822/SMTP,
                    A=TCP $h
    Msmtp8, P=[IPC], F=mDFMuX8, S=EnvFromSMTP/HdrFromSMTP, R=EnvToSMTP, E=\r\n, L=990,
                    M=5242880, m=6, r=6, T=DNS/RFC822/SMTP,
                    A=TCP $h
    Mdsmtp, P=[IPC], F=mDFMuXa%, S=EnvFromSMTP/HdrFromSMTP, R=EnvToSMTP, E=\r\n, L=990,
                    M=5242880, m=6, r=6, T=DNS/RFC822/SMTP,
                    A=TCP $h
    Mrelay, P=[IPC], F=mDFMuXa8, S=EnvFromSMTP/HdrFromSMTP, R=MasqSMTP, E=\r\n, L=2040,
                    m=6, r=6, T=DNS/RFC822/SMTP,
                    A=TCP $h

    ####################################
    ### POP Mailer specification ###
    ####################################

    ##### $Id: pop.m4,v 8.22 2001/11/12 23:11:34 ca Exp $ #####

    Mpop, P=/usr/lib/mh/spop, F=lsDFMqPenu, S=EnvFromL, R=EnvToL/HdrToL,
                    T=DNS/RFC822/X-Unix,
                    A=pop $u

    ######################*****##############
    ### PROCMAIL Mailer specification ###
    ##################*****##################

    ##### $Id: procmail.m4,v 8.22 2001/11/12 23:11:34 ca Exp $ #####

    Mprocmail, P=/usr/bin/procmail, F=DFMSPhnu9, S=EnvFromSMTP/HdrFromSMTP, R=EnvToSMTP/HdrFromSMTP,
                    T=DNS/RFC822/X-Unix,
                    A=procmail -Y -m $h $f $u

    ---------------------------------------------------------------------------
    submit.cf
    #
    # Copyright (c) 1998-2002 Sendmail, Inc. and its suppliers.
    # All rights reserved.
    # Copyright (c) 1983, 1995 Eric P. Allman. All rights reserved.
    # Copyright (c) 1988, 1993
    # The Regents of the University of California. All rights reserved.
    #
    # By using this file, you agree to the terms and conditions set
    # forth in the LICENSE file which can be found at the top level of
    # the sendmail distribution.
    #
    #

    ######################################################################
    ######################################################################
    #####
    ##### SENDMAIL CONFIGURATION FILE
    #####
    ##### built by root@sun on Wed Apr 9 19:02:44 EDT 2003
    ##### in /usr/local/src/system/sendmail-8.12.9/cf/cf
    ##### using ../ as configuration include directory
    #####
    ######################################################################
    #####
    ##### DO NOT EDIT THIS FILE! Only edit the source .mc file.
    #####
    ######################################################################
    ######################################################################

    ##### $Id: cfhead.m4,v 8.108.2.2 2003/03/11 21:24:20 ca Exp $ #####
    ##### $Id: cf.m4,v 8.32 1999/02/07 07:26:14 gshapiro Exp $ #####
    ##### $Id: submit.mc,v 8.12.9 2003/04/09 ca Exp $ #####
    ##### $Id: msp.m4,v 1.32 2002/03/26 22:02:03 ca Exp $ #####

    ##### $Id: no_default_msa.m4,v 8.2 2001/02/14 05:03:22 gshapiro Exp $ #####

    ##### $Id: proto.m4,v 8.649.2.17 2003/03/28 17:20:53 ca Exp $ #####

    # level 10 config file format
    V10/Berkeley

    # override file safeties - setting this option compromises system security,
    # addressing the actual file configuration problem is preferred
    # need to set this before any file actions are encountered in the cf file
    #O DontBlameSendmail=safe

    # default LDAP map specification
    # need to set this now before any LDAP maps are defined
    #O LDAPDefaultSpec=-h localhost

    ##################
    # local info #
    ##################

    # my LDAP cluster
    # need to set this before any LDAP lookups are done (including classes)
    #D{sendmailMTACluster}$m

    Cwlocalhost

    # my official domain name
    # ... define this only if sendmail cannot automatically determine your domain
    #Dj$w.Foo.COM

    CP.

    # "Smart" relay host (may be null)
    DS

    # operators that cannot be in local usernames (i.e., network indicators)
    CO @ % !

    # a class with just dot (for identifying canonical names)
    C..

    # a class with just a left bracket (for identifying domain literals)
    C[[

    # Resolve map (to check if a host exists in check_mail)
    Kresolve host -a<OKR> -T<TEMP>
    C{ResOk}OKR

    # Hosts for which relaying is permitted ($=R)
    FR-o /etc/mail/relay-domains

    # arithmetic map
    Karith arith

    # dequoting map
    Kdequote dequote

    # class E: names that should be exposed as from this host, even if we masquerade
    # class L: names that should be delivered locally, even if we have a relay
    # class M: domains that should be converted to $M
    # class N: domains that should not be converted to $M
    #CL root

    # my name for error messages
    DnMAILER-DAEMON

    D{MTAHost}[127.0.0.1]

    # Configuration version number
    DZ8.12.9/Submit

    ###############
    # Options #
    ###############

    # strip message body to 7 bits on input?
    O SevenBitInput=False

    # 8-bit data handling
    #O EightBitMode=pass8

    # wait for alias file rebuild (default units: minutes)
    O AliasWait=10

    # location of alias file
    #O AliasFile=/etc/mail/aliases

    # minimum number of free blocks on filesystem
    O MinFreeBlocks=100

    # maximum message size
    #O MaxMessageSize=1000000

    # substitution for space (blank) characters
    O BlankSub=.

    # avoid connecting to "expensive" mailers on initial submission?
    O HoldExpensive=False

    # checkpoint queue runs after every N successful deliveries
    #O CheckpointInterval=10

    # default delivery mode
    O DeliveryMode=i

    # error message header/file
    #O ErrorHeader=/etc/mail/error-header

    # error mode
    #O ErrorMode=print

    # save Unix-style "From_" lines at top of header?
    #O SaveFromLine=False

    # queue file mode (qf files)
    O QueueFileMode=0660

    # temporary file mode
    O TempFileMode=0600

    # match recipients against GECOS field?
    #O MatchGECOS=False

    # maximum hop count
    #O MaxHopCount=25

    # location of help file
    O HelpFile=/etc/mail/helpfile

    # ignore dots as terminators in incoming messages?
    #O IgnoreDots=False

    # name resolver options
    #O ResolverOptions=+AAONLY

    # deliver MIME-encapsulated error messages?
    O SendMimeErrors=True

    # Forward file search path
    O ForwardPath

    # open connection cache size
    O ConnectionCacheSize=2

    # open connection cache timeout
    O ConnectionCacheTimeout=5m

    # persistent host status directory
    #O HostStatusDirectory=.hoststat

    # single thread deliveries (requires HostStatusDirectory)?
    #O SingleThreadDelivery=False

    # use Errors-To: header?
    O UseErrorsTo=False

    # log level
    O LogLevel=9

    # send to me too, even in an alias expansion?
    #O MeToo=True

    # verify RHS in newaliases?
    O CheckAliases=False

    # default messages to old style headers if no special punctuation?
    O OldStyleHeaders=True

    # SMTP daemon options

    O DaemonPortOptions=Name=NoMTA, Addr=127.0.0.1, M=E

    # SMTP client options
    #O ClientPortOptions=Family=inet, Address=0.0.0.0

    # Modifiers to define {daemon_flags} for direct submissions
    #O DirectSubmissionModifiers

    # Use as mail submission program? See sendmail/SECURITY
    O UseMSP=True

    # privacy flags
    O PrivacyOptions=goaway,noetrn,restrictqrun

    # who (if anyone) should get extra copies of error messages
    #O PostmasterCopy=Postmaster

    # slope of queue-only function
    #O QueueFactor=600000

    # limit on number of concurrent queue runners
    #O MaxQueueChildren

    # maximum number of queue-runners per queue-grouping with multiple queues
    #O MaxRunnersPerQueue=1

    # priority of queue runners (nice(3))
    #O NiceQueueRun

    # shall we sort the queue by hostname first?
    #O QueueSortOrder=priority

    # minimum time in queue before retry
    #O MinQueueAge=30m

    # how many jobs can you process in the queue?
    #O MaxQueueRunSize=10000

    # perform initial split of envelope without checking MX records
    #O FastSplit=1

    # queue directory
    O QueueDirectory=/var/spool/clientmqueue

    # key for shared memory; 0 to turn off
    #O SharedMemoryKey=0

    # timeouts (many of these)
    #O Timeout.initial=5m
    #O Timeout.connect=5m
    #O Timeout.aconnect=0s
    #O Timeout.iconnect=5m
    #O Timeout.helo=5m
    #O Timeout.mail=10m
    #O Timeout.rcpt=1h
    #O Timeout.datainit=5m
    #O Timeout.datablock=1h
    #O Timeout.datafinal=1h
    #O Timeout.rset=5m
    #O Timeout.quit=2m
    #O Timeout.misc=2m
    #O Timeout.command=1h
    #O Timeout.ident=5s
    #O Timeout.fileopen=60s
    #O Timeout.control=2m
    O Timeout.queuereturn=5d
    #O Timeout.queuereturn.normal=5d
    #O Timeout.queuereturn.urgent=2d
    #O Timeout.queuereturn.non-urgent=7d

    O Timeout.queuewarn=4h
    #O Timeout.queuewarn.normal=4h
    #O Timeout.queuewarn.urgent=1h
    #O Timeout.queuewarn.non-urgent=12h

    #O Timeout.hoststatus=30m
    #O Timeout.resolver.retrans=5s
    #O Timeout.resolver.retrans.first=5s
    #O Timeout.resolver.retrans.normal=5s
    #O Timeout.resolver.retry=4
    #O Timeout.resolver.retry.first=4
    #O Timeout.resolver.retry.normal=4
    #O Timeout.lhlo=2m
    #O Timeout.auth=10m
    #O Timeout.starttls=1h

    # time for DeliverBy; extension disabled if less than 0
    #O DeliverByMin=0

    # should we not prune routes in route-addr syntax addresses?
    #O DontPruneRoutes=False

    # queue up everything before forking?
    O SuperSafe=True

    # status file
    O StatusFile=/var/spool/clientmqueue/sm-client.st

    # time zone handling:
    # if undefined, use system default
    # if defined but null, use TZ envariable passed in
    # if defined and non-null, use that info
    O TimeZoneSpec=

    # default UID (can be username or userid:groupid)
    #O DefaultUser=mailnull

    # list of locations of user database file (null means no lookup)
    #O UserDatabaseSpec=/etc/mail/userdb

    # fallback MX host
    #O FallbackMXhost=fall.back.host.net

    # if we are the best MX host for a site, try it directly instead of config err
    #O TryNullMXList=False

    # load average at which we just queue messages
    #O QueueLA=8

    # load average at which we refuse connections
    #O RefuseLA=12

    # load average at which we delay connections; 0 means no limit
    #O DelayLA=0

    # maximum number of children we allow at one time
    #O MaxDaemonChildren=0

    # maximum number of new connections per second
    #O ConnectionRateThrottle=0

    # work recipient factor
    #O RecipientFactor=30000

    # deliver each queued job in a separate process?
    #O ForkEachJob=False

    # work class factor
    #O ClassFactor=1800

    # work time factor
    #O RetryFactor=90000

    # default character set
    #O DefaultCharSet=iso-8859-1

    # service switch file (name hardwired on Solaris, Ultrix, OSF/1, others)
    #O ServiceSwitchFile=/etc/mail/service.switch

    # hosts file (normally /etc/hosts)
    #O HostsFile=/etc/hosts

    # dialup line delay on connection failure
    #O DialDelay=10s

    # action to take if there are no recipients in the message
    #O NoRecipientAction=add-to-undisclosed

    # chrooted environment for writing to files
    #O SafeFileEnvironment=/arch

    # are colons OK in addresses?
    #O ColonOkInAddr=True

    # shall I avoid expanding CNAMEs (violates protocols)?
    #O DontExpandCnames=False

    # SMTP initial login message (old $e macro)
    O SmtpGreetingMessage=$j Sendmail $v/$Z; $b

    # UNIX initial From header format (old $l macro)
    O UnixFromLine=From $g $d

    # From: lines that have embedded newlines are unwrapped onto one line
    #O SingleLineFromHeader=False

    # Allow HELO SMTP command that does not include a host name
    #O AllowBogusHELO=False

    # Characters to be quoted in a full name phrase (@,;:\()[] are automatic)
    #O MustQuoteChars=.

    # delimiter (operator) characters (old $o macro)
    O OperatorChars=.:%@!^/[]+

    # shall I avoid calling initgroups(3) because of high NIS costs?
    O DontInitGroups=True

    # are group-writable :include: and .forward files (un)trustworthy?
    # True (the default) means they are not trustworthy.
    #O UnsafeGroupWrites=True

    # where do errors that occur when sending errors get sent?
    #O DoubleBounceAddress=postmaster

    # where to save bounces if all else fails
    #O DeadLetterDrop=/var/tmp/dead.letter

    # what user id do we assume for the majority of the processing?
    O RunAsUser=smmsp

    # maximum number of recipients per SMTP envelope
    #O MaxRecipientsPerMessage=100

    # limit the rate recipients per SMTP envelope are accepted
    # once the threshold number of recipients have been rejected
    #O BadRcptThrottle=20

    # shall we get local names from our installed interfaces?
    O DontProbeInterfaces=True

    # Return-Receipt-To: header implies DSN request
    #O RrtImpliesDsn=False

    # override connection address (for testing)
    #O ConnectOnlyTo=0.0.0.0

    # Trusted user for file ownership and starting the daemon
    O TrustedUser=smmsp

    # Control socket for daemon management
    #O ControlSocketName=/var/spool/mqueue/.control

    # Maximum MIME header length to protect MUAs
    #O MaxMimeHeaderLength=2048/1024

    # Maximum length of the sum of all headers
    #O MaxHeadersLength=32768

    # Maximum depth of alias recursion
    #O MaxAliasRecursion=10

    # location of pid file
    O PidFile=/var/run/sm-client.pid

    # Prefix string for the process title shown on 'ps' listings
    #O ProcessTitlePrefix=prefix

    # Data file (df) memory-buffer file maximum size
    #O DataFileBufferSize=4096

    # Transcript file (xf) memory-buffer file maximum size
    #O XscriptFileBufferSize=4096

    # lookup type to find information about local mailboxes
    #O MailboxDatabase=pw

    # list of authentication mechanisms
    #O AuthMechanisms=EXTERNAL GSSAPI KERBEROS_V4 DIGEST-MD5 CRAM-MD5

    # default authentication information for outgoing connections
    #O DefaultAuthInfo=/etc/mail/default-auth-info

    # SMTP AUTH flags
    #O AuthOptions

    # SMTP AUTH maximum encryption strength
    #O AuthMaxBits

    # SMTP STARTTLS server options
    #O TLSSrvOptions

    # Input mail filters
    #O InputMailFilters

    # CA directory
    #O CACertPath
    # CA file
    #O CACertFile
    # Server Cert
    #O ServerCertFile
    # Server private key
    #O ServerKeyFile
    # Client Cert
    #O ClientCertFile
    # Client private key
    #O ClientKeyFile
    # DHParameters (only required if DSA/DH is used)
    #O DHParameters
    # Random data source (required for systems without /dev/urandom under OpenSSL)
    #O RandFile

    ############################
    # QUEUE GROUP DEFINITIONS #
    ############################

    ###########################
    # Message precedences #
    ###########################

    Pfirst-class=0
    Pspecial-delivery=100
    Plist=-30
    Pbulk=-60
    Pjunk=-100

    #####################
    # Trusted users #
    #####################

    # this is equivalent to setting class "t"
    #Ft/etc/mail/trusted-users
    Troot
    Tdaemon
    Tuucp

    #########################
    # Format of headers #
    #########################

    H?P?Return-Path: <$g>
    HReceived: $?sfrom $s $.$?_($?s$|from $.$_)
            $.$?{auth_type}(authenticated$?{auth_ssf} bits=${auth_ssf}$.)
            $.by $j ($v/$Z)$?r with $r$. id $i$?{tls_version}
            (version=${tls_version} cipher=${cipher} bits=${cipher_bits} verify=${verify})$.$?u
            for $u; $|;
            $.$b
    H?D?Resent-Date: $a
    H?D?Date: $a
    H?F?Resent-From: $?x$x <$g>$|$g$.
    H?F?From: $?x$x <$g>$|$g$.
    H?x?Full-Name: $x
    # HPosted-Date: $a
    # H?l?Received-Date: $b
    H?M?Resent-Message-Id: <$t.$i@$j>
    H?M?Message-Id: <$t.$i@$j>

    #
    ######################################################################
    ######################################################################
    #####
    ##### REWRITING RULES
    #####
    ######################################################################
    ######################################################################

    ############################################
    ### Ruleset 3 -- Name Canonicalization ###
    ############################################
    Scanonify=3

    # handle null input (translate to <@> special case)
    R$@ $@ <@>

    # strip group: syntax (not inside angle brackets!) and trailing semicolon
    R$* $: $1 <@> mark addresses
    R$* < $* > $* <@> $: $1 < $2 > $3 unmark <addr>
    R@ $* <@> $: @ $1 unmark @host:...
    R$* [ IPv6 : $+ ] <@> $: $1 [ IPv6 : $2 ] unmark IPv6 addr
    R$* :: $* <@> $: $1 :: $2 unmark node::addr
    R:include: $* <@> $: :include: $1 unmark :include:...
    R$* : $* [ $* ] $: $1 : $2 [ $3 ] <@> remark if leading colon
    R$* : $* <@> $: $2 strip colon if marked
    R$* <@> $: $1 unmark
    R$* ; $1 strip trailing semi
    R$* < $+ :; > $* $@ $2 :; <@> catch <list:;>
    R$* < $* ; > $1 < $2 > bogus bracketed semi

    # null input now results from list:; syntax
    R$@ $@ :; <@>

    # strip angle brackets -- note RFC733 heuristic to get innermost item
    R$* $: < $1 > housekeeping <>
    R$+ < $* > < $2 > strip excess on left
    R< $* > $+ < $1 > strip excess on right
    R<> $@ < @ > MAIL FROM:<> case
    R< $+ > $: $1 remove housekeeping <>

    # strip route address <@a,@b,@c:user@d> -> <user@d>
    R@ $+ , $+ $2
    R@ [ $* ] : $+ $2
    R@ $+ : $+ $2

    # find focus for list syntax
    R $+ : $* ; @ $+ $@ $>Canonify2 $1 : $2 ; < @ $3 > list syntax
    R $+ : $* ; $@ $1 : $2; list syntax

    # find focus for @ syntax addresses
    R$+ @ $+ $: $1 < @ $2 > focus on domain
    R$+ < $+ @ $+ > $1 $2 < @ $3 > move gaze right
    R$+ < @ $+ > $@ $>Canonify2 $1 < @ $2 > already canonical

    # convert old-style addresses to a domain-based address
    R$- ! $+ $@ $>Canonify2 $2 < @ $1 .UUCP > resolve uucp names
    R$+ . $- ! $+ $@ $>Canonify2 $3 < @ $1 . $2 > domain uucps
    R$+ ! $+ $@ $>Canonify2 $2 < @ $1 .UUCP > uucp subdomains

    # convert node::user addresses into a domain-based address
    R$- :: $+ $@ $>Canonify2 $2 < @ $1 .DECNET > resolve DECnet names
    R$- . $- :: $+ $@ $>Canonify2 $3 < @ $1.$2 .DECNET > numeric DECnet addr

    # if we have % signs, take the rightmost one
    R$* % $* $1 @ $2 First make them all @s.
    R$* @ $* @ $* $1 % $2 @ $3 Undo all but the last.
    R$* @ $* $@ $>Canonify2 $1 < @ $2 > Insert < > and finish

    # else we must be a local name
    R$* $@ $>Canonify2 $1

    ################################################
    ### Ruleset 96 -- bottom half of ruleset 3 ###
    ################################################

    SCanonify2=96

    # handle special cases for local names
    R$* < @ localhost > $* $: $1 < @ $j . > $2 no domain at all
    R$* < @ localhost . $m > $* $: $1 < @ $j . > $2 local domain
    R$* < @ localhost . UUCP > $* $: $1 < @ $j . > $2 .UUCP domain

    # check for IPv4/IPv6 domain literal
    R$* < @ [ $+ ] > $* $: $1 < @@ [ $2 ] > $3 mark [addr]
    R$* < @@ $=w > $* $: $1 < @ $j . > $3 self-literal
    R$* < @@ $+ > $* $@ $1 < @ $2 > $3 canon IP addr

    # if really UUCP, handle it immediately

    # try UUCP traffic as a local address
    R$* < @ $+ . UUCP > $* $: $1 < @ $[ $2 $] . UUCP . > $3
    R$* < @ $+ . . UUCP . > $* $@ $1 < @ $2 . > $3

    # hostnames ending in class P are always canonical
    R$* < @ $* $=P > $* $: $1 < @ $2 $3 . > $4
    R$* < @ $* $~P > $* $: $&{daemon_flags} $| $1 < @ $2 $3 > $4
    R$* CC $* $| $* < @ $+.$+ > $* $: $3 < @ $4.$5 . > $6
    R$* CC $* $| $* $: $3
    # pass to name server to make hostname canonical
    R$* $| $* < @ $* > $* $: $2 < @ $[ $3 $] > $4
    R$* $| $* $: $2

    # local host aliases and pseudo-domains are always canonical
    R$* < @ $=w > $* $: $1 < @ $2 . > $3
    R$* < @ $=M > $* $: $1 < @ $2 . > $3
    R$* < @ $* . . > $* $1 < @ $2 . > $3

    ##################################################
    ### Ruleset 4 -- Final Output Post-rewriting ###
    ##################################################
    Sfinal=4

    R$+ :; <@> $@ $1 : handle <list:;>
    R$* <@> $@ handle <> and list:;

    # strip trailing dot off possibly canonical name
    R$* < @ $+ . > $* $1 < @ $2 > $3

    # eliminate internal code
    R$* < @ *LOCAL* > $* $1 < @ $j > $2

    # externalize local domain info
    R$* < $+ > $* $1 $2 $3 defocus
    R@ $+ : @ $+ : $+ @ $1 , @ $2 : $3 <route-addr> canonical
    R@ $* $@ @ $1 ... and exit

    # UUCP must always be presented in old form
    R$+ @ $- . UUCP $2!$1 u@h.UUCP => h!u

    # put DECnet back in :: form
    R$+ @ $+ . DECNET $2 :: $1 u@h.DECNET => h::u
    # delete duplicate local names
    R$+ % $=w @ $=w $1 @ $2 u%host@host => u@host

    ##############################################################
    ### Ruleset 97 -- recanonicalize and call ruleset zero ###
    ### (used for recursive calls) ###
    ##############################################################

    SRecurse=97
    R$* $: $>canonify $1
    R$* $@ $>parse $1

    ######################################
    ### Ruleset 0 -- Parse Address ###
    ######################################

    Sparse=0

    R$* $: $>Parse0 $1 initial parsing
    R<@> $#local $: <@> special case error msgs
    R$* $: $>ParseLocal $1 handle local hacks
    R$* $: $>Parse1 $1 final parsing

    #
    # Parse0 -- do initial syntax checking and eliminate local addresses.
    # This should either return with the (possibly modified) input
    # or return with a #error mailer. It should not return with a
    # #mailer other than the #error mailer.
    #

    SParse0
    R<@> $@ <@> special case error msgs
    R$* : $* ; <@> $#error $@ 5.1.3 $: "553 List:; syntax illegal for recipient addresses"
    R@ <@ $* > < @ $1 > catch "@@host" bogosity
    R<@ $+> $#error $@ 5.1.3 $: "553 User address required"
    R$+ <@> $#error $@ 5.1.3 $: "553 Hostname required"
    R$* $: <> $1
    R<> $* < @ [ $* ] : $+ > $* $1 < @ [ $2 ] : $3 > $4
    R<> $* < @ [ $* ] , $+ > $* $1 < @ [ $2 ] , $3 > $4
    R<> $* < @ [ $* ] $+ > $* $#error $@ 5.1.2 $: "553 Invalid address"
    R<> $* < @ [ $+ ] > $* $1 < @ [ $2 ] > $3
    R<> $* <$* : $* > $* $#error $@ 5.1.3 $: "553 Colon illegal in host name part"
    R<> $* $1
    R$* < @ . $* > $* $#error $@ 5.1.2 $: "553 Invalid host name"
    R$* < @ $* .. $* > $* $#error $@ 5.1.2 $: "553 Invalid host name"
    R$* < @ $* @ > $* $#error $@ 5.1.2 $: "553 Invalid route address"
    R$* @ $* < @ $* > $* $#error $@ 5.1.3 $: "553 Invalid route address"
    R$* , $~O $* $#error $@ 5.1.3 $: "553 Invalid route address"

    # now delete the local info -- note $=O to find characters that cause forwarding
    R$* < @ > $* $@ $>Parse0 $>canonify $1 user@ => user
    R< @ $=w . > : $* $@ $>Parse0 $>canonify $2 @here:... -> ...
    R$- < @ $=w . > $: $(dequote $1 $) < @ $2 . > dequote "foo"@here
    R< @ $+ > $#error $@ 5.1.3 $: "553 User address required"
    R$* $=O $* < @ $=w . > $@ $>Parse0 $>canonify $1 $2 $3 ...@here -> ...
    R$- $: $(dequote $1 $) < @ *LOCAL* > dequote "foo"
    R< @ *LOCAL* > $#error $@ 5.1.3 $: "553 User address required"
    R$* $=O $* < @ *LOCAL* >
                            $@ $>Parse0 $>canonify $1 $2 $3 ...@*LOCAL* -> ...
    R$* < @ *LOCAL* > $: $1

    #
    # Parse1 -- the bottom half of ruleset 0.
    #

    SParse1

    # handle numeric address spec
    R$* < @ [ $+ ] > $* $: $>ParseLocal $1 < @ [ $2 ] > $3 numeric internet spec
    R$* < @ [ $+ ] > $* $: $1 < @ [ $2 ] : $S > $3 Add smart host to path
    R$* < @ [ $+ ] : > $* $#esmtp $@ [$2] $: $1 < @ [$2] > $3 no smarthost: send
    R$* < @ [ $+ ] : $- : $*> $* $#$3 $@ $4 $: $1 < @ [$2] > $5 smarthost with mailer
    R$* < @ [ $+ ] : $+ > $* $#esmtp $@ $3 $: $1 < @ [$2] > $4 smarthost without mailer

    # short circuit local delivery so forwarded email works

    R$=L < @ $=w . > $#local $: @ $1 special local names
    R$+ < @ $=w . > $#local $: $1 regular local name

    # resolve remotely connected UUCP links (if any)

    # resolve fake top level domains by forwarding to other hosts

    # pass names that still have a host to a smarthost (if defined)
    R$* < @ $* > $* $: $>MailerToTriple < $S > $1 < @ $2 > $3 glue on smarthost name

    # deal with other remote names
    R$* < @$* > $* $#esmtp $@ $2 $: $1 < @ $2 > $3 user@host.domain

    # handle locally delivered names
    R$=L $#local $: @ $1 special local names
    R$+ $#local $: $1 regular local names

    ###########################################################################
    ### Ruleset 5 -- special rewriting after aliases have been expanded ###
    ###########################################################################

    SLocal_localaddr
    Slocaladdr=5
    R$+ $: $1 $| $>"Local_localaddr" $1
    R$+ $| $#ok $@ $1 no change
    R$+ $| $#$* $#$2
    R$+ $| $* $: $1

    # deal with plussed users so aliases work nicely
    R$+ + * $#local $@ $&h $: $1
    R$+ + $* $#local $@ + $2 $: $1 + *

    # prepend an empty "forward host" on the front
    R$+ $: <> $1

    R< > $+ $: < > < $1 <> $&h > nope, restore +detail

    R< > < $+ <> + $* > $: < > < $1 + $2 > check whether +detail
    R< > < $+ <> $* > $: < > < $1 > else discard
    R< > < $+ + $* > $* < > < $1 > + $2 $3 find the user part
    R< > < $+ > + $* $#local $@ $2 $: @ $1 strip the extra +
    R< > < $+ > $@ $1 no +detail
    R$+ $: $1 <> $&h add +detail back in

    R$+ <> + $* $: $1 + $2 check whether +detail
    R$+ <> $* $: $1 else discard
    R< local : $* > $* $: $>MailerToTriple < local : $1 > $2 no host extension
    R< error : $* > $* $: $>MailerToTriple < error : $1 > $2 no host extension

    R< $~[ : $+ > $+ $: $>MailerToTriple < $1 : $2 > $3 < @ $2 >

    R< $+ > $+ $@ $>MailerToTriple < $1 > $2 < @ $1 >

    ###################################################################
    ### Ruleset 95 -- canonify mailer:[user@]host syntax to triple ###
    ###################################################################

    SMailerToTriple=95
    R< > $* $@ $1 strip off null relay
    R< error : $-.$-.$- : $+ > $* $#error $@ $1.$2.$3 $: $4
    R< error : $- $+ > $* $#error $@ $(dequote $1 $) $: $2
    R< local : $* > $* $>CanonLocal < $1 > $2
    R< $~[ : $+ @ $+ > $*<$*>$* $# $1 $@ $3 $: $2<@$3> use literal user
    R< $~[ : $+ > $* $# $1 $@ $2 $: $3 try qualified mailer
    R< $=w > $* $@ $2 delete local host
    R< $+ > $* $#relay $@ $1 $: $2 use unqualified mailer

    ###################################################################
    ### Ruleset CanonLocal -- canonify local: syntax ###
    ###################################################################

    SCanonLocal
    # strip local host from routed addresses
    R< $* > < @ $+ > : $+ $@ $>Recurse $3
    R< $* > $+ $=O $+ < @ $+ > $@ $>Recurse $2 $3 $4

    # strip trailing dot from any host name that may appear
    R< $* > $* < @ $* . > $: < $1 > $2 < @ $3 >

    # handle local: syntax -- use old user, either with or without host
    R< > $* < @ $* > $* $#local $@ $1@$2 $: $1
    R< > $+ $#local $@ $1 $: $1

    # handle local:user@host syntax -- ignore host part
    R< $+ @ $+ > $* < @ $* > $: < $1 > $3 < @ $4 >

    # handle local:user syntax
    R< $+ > $* <@ $* > $* $#local $@ $2@$3 $: $1
    R< $+ > $* $#local $@ $2 $: $1

    ###################################################################
    ### Ruleset 93 -- convert header names to masqueraded form ###
    ###################################################################

    SMasqHdr=93

    # do not masquerade anything in class N
    R$* < @ $* $=N . > $@ $1 < @ $2 $3 . >

    R$* < @ *LOCAL* > $@ $1 < @ $j . >

    ###################################################################
    ### Ruleset 94 -- convert envelope names to masqueraded form ###
    ###################################################################

    SMasqEnv=94
    R$* < @ *LOCAL* > $* $: $1 < @ $j . > $2

    ###################################################################
    ### Ruleset 98 -- local part of ruleset zero (can be null) ###
    ###################################################################

    SParseLocal=98

    ######################################################################
    ### CanonAddr -- Convert an address into a standard form for
    ### relay checking. Route address syntax is
    ### crudely converted into a %-hack address.
    ###
    ### Parameters:
    ### $1 -- full recipient address
    ###
    ### Returns:
    ### parsed address, not in source route form
    ######################################################################

    SCanonAddr
    R$* $: $>Parse0 $>canonify $1 make domain canonical

    ######################################################################
    ### ParseRecipient -- Strip off hosts in $=R as well as possibly
    ### $* $=m or the access database.
    ### Check user portion for host separators.
    ###
    ### Parameters:
    ### $1 -- full recipient address
    ###
    ### Returns:
    ### parsed, non-local-relaying address
    ######################################################################

    SParseRecipient
    R$* $: <?> $>CanonAddr $1
    R<?> $* < @ $* . > <?> $1 < @ $2 > strip trailing dots
    R<?> $- < @ $* > $: <?> $(dequote $1 $) < @ $2 > dequote local part

    # if no $=O character, no host in the user portion, we are done
    R<?> $* $=O $* < @ $* > $: <NO> $1 $2 $3 < @ $4>
    R<?> $* $@ $1

    R<NO> $* < @ $* $=R > $: <RELAY> $1 < @ $2 $3 >

    R<RELAY> $* < @ $* > $@ $>ParseRecipient $1
    R<$+> $* $@ $2

    ######################################################################
    ### check_relay -- check hostname/address on SMTP startup
    ######################################################################

    SLocal_check_relay
    Scheck_relay
    R$* $: $1 $| $>"Local_check_relay" $1
    R$* $| $* $| $#$* $#$3
    R$* $| $* $| $* $@ $>"Basic_check_relay" $1 $| $2

    SBasic_check_relay
    # check for deferred delivery mode
    R$* $: < $&{deliveryMode} > $1
    R< d > $* $@ deferred
    R< $* > $* $: $2

    ######################################################################
    ### check_mail -- check SMTP `MAIL FROM:' command argument
    ######################################################################

    SLocal_check_mail
    Scheck_mail
    R$* $: $1 $| $>"Local_check_mail" $1
    R$* $| $#$* $#$2
    R$* $| $* $@ $>"Basic_check_mail" $1

    SBasic_check_mail
    # check for deferred delivery mode
    R$* $: < $&{deliveryMode} > $1
    R< d > $* $@ deferred
    R< $* > $* $: $2

    # authenticated?
    R$* $: $1 $| $>"tls_client" $&{verify} $| MAIL
    R$* $| $#$+ $#$2
    R$* $| $* $: $1

    R<> $@ <OK> we MUST accept <> (RFC 1123)
    R$+ $: <?> $1
    R<?><$+> $: <@> <$1>
    R<?>$+ $: <@> <$1>
    R$* $: $&{daemon_flags} $| $1
    R$* f $* $| <@> < $* @ $- > $: < ? $&{client_name} > < $3 @ $4 >
    R$* u $* $| <@> < $* > $: <?> < $3 >
    R$* $| $* $: $2
    # handle case of @localhost on address
    R<@> < $* @ localhost > $: < ? $&{client_name} > < $1 @ localhost >
    R<@> < $* @ [127.0.0.1] >
                            $: < ? $&{client_name} > < $1 @ [127.0.0.1] >
    R<@> < $* @ localhost.$m >
                            $: < ? $&{client_name} > < $1 @ localhost.$m >
    R<@> < $* @ localhost.UUCP >
                            $: < ? $&{client_name} > < $1 @ localhost.UUCP >
    R<@> $* $: $1 no localhost as domain
    R<? $=w> $* $: $2 local client: ok
    R<? $+> <$+> $#error $@ 5.5.4 $: "553 Real domain name required for sender address"
    R<?> $* $: $1
    R$* $: <?> $>CanonAddr $1 canonify sender address and mark it
    R<?> $* < @ $+ . > <?> $1 < @ $2 > strip trailing dots
    # handle non-DNS hostnames (*.bitnet, *.decnet, *.uucp, etc)
    R<?> $* < @ $* $=P > $: <OKR> $1 < @ $2 $3 >
    R<?> $* < @ $j > $: <OKR> $1 < @ $j >
    R<?> $* < @ $+ > $: <? $(resolve $2 $: $2 <PERM> $) > $1 < @ $2 >
    R<? $* <$->> $* < @ $+ >
                            $: <$2> $3 < @ $4 >

    # handle case of no @domain on address
    R<?> $* $: $&{daemon_flags} $| <?> $1
    R$* u $* $| <?> $* $: <OKR> $3
    R$* $| $* $: $2
    R<?> $* $: < ? $&{client_addr} > $1
    R<?> $* $@ <OKR> ...local unqualed ok
    R<? $+> $* $#error $@ 5.5.4 $: "553 Domain name required for sender address " $&f
                                                            ...remote is not
    # check results
    R<?> $* $: @ $1 mark address: nothing known about it
    R<$={ResOk}> $* $@ <OKR> domain ok: stop
    R<TEMP> $* $#error $@ 4.1.8 $: "451 Domain of sender address " $&f " does not resolve"
    R<PERM> $* $#error $@ 5.1.8 $: "553 Domain of sender address " $&f " does not exist"

    ######################################################################
    ### check_rcpt -- check SMTP `RCPT TO:' command argument
    ######################################################################

    SLocal_check_rcpt
    Scheck_rcpt
    R$* $: $1 $| $>"Local_check_rcpt" $1
    R$* $| $#$* $#$2
    R$* $| $* $@ $>"Basic_check_rcpt" $1

    SBasic_check_rcpt
    # empty address?
    R<> $#error $@ nouser $: "553 User address required"
    R$@ $#error $@ nouser $: "553 User address required"
    # check for deferred delivery mode
    R$* $: < $&{deliveryMode} > $1
    R< d > $* $@ deferred
    R< $* > $* $: $2

    ######################################################################
    R$* $: $1 $| @ $>"Rcpt_ok" $1
    R$* $| @ $#TEMP $+ $: $1 $| T $2
    R$* $| @ $#$* $#$2
    R$* $| @ RELAY $@ RELAY
    R$* $| @ $* $: O $| $>"Relay_ok" $1
    R$* $| T $+ $: T $2 $| $>"Relay_ok" $1
    R$* $| $#TEMP $+ $#error $2
    R$* $| $#$* $#$2
    R$* $| RELAY $@ RELAY
    R T $+ $| $* $#error $1
    # anything else is bogus
    R$* $#error $@ 5.7.1 $: "550 Relaying denied"

    ######################################################################
    ### Rcpt_ok: is the recipient ok?
    ######################################################################
    SRcpt_ok
    R$* $: $>ParseRecipient $1 strip relayable hosts

    # authenticated via TLS?
    R$* $: $1 $| $>RelayTLS client authenticated?
    R$* $| $# $+ $# $2 error/ok?
    R$* $| $* $: $1 no

    R$* $: $1 $| $>"Local_Relay_Auth" $&{auth_type}
    R$* $| $# $* $# $2
    R$* $| NO $: $1
    R$* $| $* $: $1 $| $&{auth_type}
    R$* $| $: $1
    R$* $| $={TrustAuthMech} $# RELAY
    R$* $| $* $: $1
    # anything terminating locally is ok
    R$+ < @ $=w > $@ RELAY
    R$+ < @ $* $=R > $@ RELAY

    # check for local user (i.e. unqualified address)
    R$* $: <?> $1
    R<?> $* < @ $+ > $: <REMOTE> $1 < @ $2 >
    # local user is ok
    R<?> $+ $@ RELAY
    R<$+> $* $: $2

    ######################################################################
    ### Relay_ok: is the relay/sender ok?
    ######################################################################
    SRelay_ok
    # anything originating locally is ok
    # check IP address
    R$* $: $&{client_addr}
    R$@ $@ RELAY originated locally
    R0 $@ RELAY originated locally
    R127.0.0.1 $@ RELAY originated locally
    RIPv6:::1 $@ RELAY originated locally
    R$=R $* $@ RELAY relayable IP address
    R$* $: [ $1 ] put brackets around it...
    R$=w $@ RELAY ... and see if it is local

    # check client name: first: did it resolve?
    R$* $: < $&{client_resolve} >
    R<TEMP> $#TEMP $@ 4.7.1 $: "450 Relaying temporarily denied. Cannot resolve PTR record for " $&{client_addr}
    R<FORGED> $#error $@ 5.7.1 $: "550 Relaying denied. IP name possibly forged " $&{client_name}
    R<FAIL> $#error $@ 5.7.1 $: "550 Relaying denied. IP name lookup failed " $&{client_name}
    R$* $: <@> $&{client_name}
    # pass to name server to make hostname canonical
    R<@> $* $=P $:<?> $1 $2
    R<@> $+ $:<?> $[ $1 $]
    R$* . $1 strip trailing dots
    R<?> $=w $@ RELAY
    R<?> $* $=R $@ RELAY

    ######################################################################
    ### trust_auth: is user trusted to authenticate as someone else?
    ###
    ### Parameters:
    ### $1: AUTH= parameter from MAIL command
    ######################################################################

    SLocal_trust_auth
    Strust_auth
    R$* $: $&{auth_type} $| $1
    # required by RFC 2554 section 4.
    R$@ $| $* $#error $@ 5.7.1 $: "550 not authenticated"
    R$* $| $&{auth_authen} $@ identical
    R$* $| <$&{auth_authen}> $@ identical
    R$* $| $* $: $1 $| $>"Local_trust_auth" $1
    R$* $| $#$* $#$2
    R$* $#error $@ 5.7.1 $: "550 " $&{auth_authen} " not allowed to act as " $&{auth_author}

    ######################################################################
    ### Relay_Auth: allow relaying based on authentication?
    ###
    ### Parameters:
    ### $1: ${auth_type}
    ######################################################################
    SLocal_Relay_Auth

    ######################################################################
    ### tls_client: is connection with client "good" enough?
    ### (done in server)
    ###
    ### Parameters:
    ### ${verify} $| (MAIL|STARTTLS)
    ######################################################################
    Stls_client
    R$* $| $* $@ $>"TLS_connection" $1

    ######################################################################
    ### tls_server: is connection with server "good" enough?
    ### (done in client)
    ###
    ### Parameter:
    ### ${verify}
    ######################################################################
    Stls_server
    R$* $@ $>"TLS_connection" $1

    ######################################################################
    ### TLS_connection: is TLS connection "good" enough?
    ###
    ### Parameters:
    ### ${verify}
    ### Requirement: RHS from access map, may be ? for none.
    ######################################################################
    STLS_connection
    RSOFTWARE $#error $@ 4.7.0 $: "403 TLS handshake."

    ######################################################################
    ### RelayTLS: allow relaying based on TLS authentication
    ###
    ### Parameters:
    ### none
    ######################################################################
    SRelayTLS
    # authenticated?

    ######################################################################
    ### authinfo: lookup authinfo in the access map
    ###
    ### Parameters:
    ### $1: {server_name}
    ### $2: {server_addr}
    ######################################################################
    Sauthinfo

    SLocal_localaddr
    R$+ $: $>ParseRecipient $1
    R$* < @ $+ > $* $#relay $@ ${MTAHost} $: $1 < @ $2 > $3
    # DECnet
    R$+ :: $+ $#relay $@ ${MTAHost} $: $1 :: $2
    R$* $#relay $@ ${MTAHost} $: $1 < @ $j >
    #
    ######################################################################
    ######################################################################
    #####
    ##### MAIL FILTER DEFINITIONS
    #####
    ######################################################################
    ######################################################################

    #
    ######################################################################
    ######################################################################
    #####
    ##### MAILER DEFINITIONS
    #####
    ######################################################################
    ######################################################################

    ##################################################
    ### Local and Program Mailer specification ###
    ##################################################

    ##### $Id: local.m4,v 8.58 2000/10/26 01:58:29 ca Exp $ #####

    #
    # Envelope sender rewriting
    #
    SEnvFromL
    R<@> $n errors to mailer-daemon
    R@ <@ $*> $n temporarily bypass Sun bogosity
    R$+ $: $>AddDomain $1 add local domain if needed
    R$* $: $>MasqEnv $1 do masquerading

    #
    # Envelope recipient rewriting
    #
    SEnvToL
    R$+ < @ $* > $: $1 strip host part
    R$+ + $* $: < $&{addr_type} > $1 + $2 mark with addr type
    R<e s> $+ + $* $: $1 remove +detail for sender
    R< $* > $+ $: $2 else remove mark

    #
    # Header sender rewriting
    #
    SHdrFromL
    R<@> $n errors to mailer-daemon
    R@ <@ $*> $n temporarily bypass Sun bogosity
    R$+ $: $>AddDomain $1 add local domain if needed
    R$* $: $>MasqHdr $1 do masquerading

    #
    # Header recipient rewriting
    #
    SHdrToL
    R$+ $: $>AddDomain $1 add local domain if needed
    R$* < @ *LOCAL* > $* $: $1 < @ $j . > $2

    #
    # Common code to add local domain name (only if always-add-domain)
    #
    SAddDomain

    Mlocal, P=[IPC], F=lmDFMuXkw5, S=EnvFromL/HdrFromL, R=EnvToL/HdrToL,
                    T=DNS/RFC822/SMTP,
                    A=TCP $h
    Mprog, P=[IPC], F=lmDFMuXk5, S=EnvFromL/HdrFromL, R=EnvToL/HdrToL, D=$z:/,
                    T=X-Unix/X-Unix/X-Unix,
                    A=TCP $h

    #####################################
    ### SMTP Mailer specification ###
    #####################################

    ##### $Id: smtp.m4,v 8.64 2001/04/03 01:52:54 gshapiro Exp $ #####

    #
    # common sender and masquerading recipient rewriting
    #
    SMasqSMTP
    R$* < @ $* > $* $@ $1 < @ $2 > $3 already fully qualified
    R$+ $@ $1 < @ *LOCAL* > add local qualification

    #
    # convert pseudo-domain addresses to real domain addresses
    #
    SPseudoToReal

    # pass <route-addr>s through
    R< @ $+ > $* $@ < @ $1 > $2 resolve <route-addr>

    # output fake domains as user%fake@relay

    # do UUCP heuristics; note that these are shared with UUCP mailers
    R$+ < @ $+ .UUCP. > $: < $2 ! > $1 convert to UUCP form
    R$+ < @ $* > $* $@ $1 < @ $2 > $3 not UUCP form

    # leave these in .UUCP form to avoid further tampering
    R< $&h ! > $- ! $+ $@ $2 < @ $1 .UUCP. >
    R< $&h ! > $-.$+ ! $+ $@ $3 < @ $1.$2 >
    R< $&h ! > $+ $@ $1 < @ $&h .UUCP. >
    R< $+ ! > $+ $: $1 ! $2 < @ $Y > use UUCP_RELAY
    R$+ < @ $~[ $* : $+ > $@ $1 < @ $4 > strip mailer: part
    R$+ < @ > $: $1 < @ *LOCAL* > if no UUCP_RELAY

    #
    # envelope sender rewriting
    #
    SEnvFromSMTP
    R$+ $: $>PseudoToReal $1 sender/recipient common
    R$* :; <@> $@ list:; special case
    R$* $: $>MasqSMTP $1 qualify unqual'ed names
    R$+ $: $>MasqEnv $1 do masquerading

    #
    # envelope recipient rewriting --
    # also header recipient if not masquerading recipients
    #
    SEnvToSMTP
    R$+ $: $>PseudoToReal $1 sender/recipient common
    R$+ $: $>MasqSMTP $1 qualify unqual'ed names
    R$* < @ *LOCAL* > $* $: $1 < @ $j . > $2

    #
    # header sender and masquerading header recipient rewriting
    #
    SHdrFromSMTP
    R$+ $: $>PseudoToReal $1 sender/recipient common
    R:; <@> $@ list:; special case

    # do special header rewriting
    R$* <@> $* $@ $1 <@> $2 pass null host through
    R< @ $* > $* $@ < @ $1 > $2 pass route-addr through
    R$* $: $>MasqSMTP $1 qualify unqual'ed names
    R$+ $: $>MasqHdr $1 do masquerading

    #
    # relay mailer header masquerading recipient rewriting
    #
    SMasqRelay
    R$+ $: $>MasqSMTP $1
    R$+ $: $>MasqHdr $1

    Msmtp, P=[IPC], F=mDFMuXk5, S=EnvFromSMTP/HdrFromSMTP, R=EnvToSMTP, E=\r\n, L=990,
                    T=DNS/RFC822/SMTP,
                    A=TCP $h
    Mesmtp, P=[IPC], F=mDFMuXak5, S=EnvFromSMTP/HdrFromSMTP, R=EnvToSMTP, E=\r\n, L=990,
                    T=DNS/RFC822/SMTP,
                    A=TCP $h
    Msmtp8, P=[IPC], F=mDFMuX8k5, S=EnvFromSMTP/HdrFromSMTP, R=EnvToSMTP, E=\r\n, L=990,
                    T=DNS/RFC822/SMTP,
                    A=TCP $h
    Mdsmtp, P=[IPC], F=mDFMuXa%k5, S=EnvFromSMTP/HdrFromSMTP, R=EnvToSMTP, E=\r\n, L=990,
                    T=DNS/RFC822/SMTP,
                    A=TCP $h
    Mrelay, P=[IPC], F=mDFMuXa8k, S=EnvFromSMTP/HdrFromSMTP, R=MasqSMTP, E=\r\n, L=2040,
                    T=DNS/RFC822/SMTP,
                    A=TCP $h

    ----------------------------------------------------------------------------

    Date: Thu, 10 Apr 2003 02:32:49 -0400 (EDT)
    From: lists@internyc.net
    To: sunmanagers@sunmanagers.org
    Subject: weird sendmail problem on Solaris 9

    I have a weird Sendmail problems and I have run out of ideas on how to fix
    it. Server is Netra X1 running Sendmail 8.12.9 and bind 9.2.2. DNS works
    100% and all e-mail works except for one domain (1tv.tv). Any time I try to
    send e-mail to that doaminS my mail gets queued with following error:

    Running /var/spool/mqueue/h3A5t8VW020803 (sequence 1 of 1)
    1tv.tv: Name server timeout
    <test@1tv.tv>... Transient parse error -- message queued for future
    delivery

    They sit in the queue for 5 days and then get thrown out.
    Here is the weird part DNS works 100% and evry thing resolves fine, mine
    and recipients address.

    nslookup
    > set type=any
    > 1tv.tv
    Server: 127.0.0.1
    Address: 127.0.0.1#53

    Non-authoritative answer:
    1tv.tv mail exchanger = 10 mxpool.postoffice.net.
    Name: 1tv.tv
    Address: 64.239.27.18
    1tv.tv nameserver = ns2-hosts.nic.tv.
    1tv.tv nameserver = ns1-hosts.nic.tv.

    Authoritative answers can be found from:
    1tv.tv nameserver = ns2-hosts.nic.tv.
    1tv.tv nameserver = ns1-hosts.nic.tv.

    -----------------------------------------------
    nslookup mxpool.postoffice.net
    Server: 127.0.0.1
    Address: 127.0.0.1#53

    Non-authoritative answer:
    Name: mxpool.postoffice.net
    Address: 165.212.65.113

    -----------------------------------------------

    telnet mxpool.postoffice.net 25
    Trying 165.212.65.113...
    Connected to mxpool.postoffice.net.
    Escape character is '^]'.
    220 esmail02.eservices.usa.net ESMTP USA.NET-SMTA vC8.MAIN.1.11G; Thu, 10
    Apr 2003 06:20:47 GMT
    QUIT
    221 Goodbye
    Connection to mxpool.postoffice.net closed by foreign host.

    -------------------------------------------------

    Also if I do Sendmail address test it fails with the same error
    /usr/lib/sendmail -bt
    ADDRESS TEST MODE (ruleset 3 NOT automatically invoked)
    Enter <ruleset> <address>
    > 3 test@1tv.tv
    canonify input: test @ 1tv . tv
    Canonify2 input: test < @ 1tv . tv >
    1tv.tv: Name server timeout
    Canonify2 returns: test < @ 1tv . tv >
    canonify returns: test < @ 1tv . tv >
    == Ruleset 3 (3) status 75

    And for the biggest kick of all, if I send e-mail to the same address from
    any other of my 5 mail servers it works fine. The only difference from the
    machines is that the rest of the servers are Linux and all the mail and dns
    software is exactly the same.

    Any ideas are welcomed.

    Thanks
    fil
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