Re: sendmail on AIX 433

From: Bruce Whittaker (bwhittak_at_ENERGY.COM.AU)
Date: 01/31/05


Date:         Tue, 1 Feb 2005 09:56:33 +1100
To: aix-l@Princeton.EDU

I'm with Bill.

You're mail server is probably defined by hostname. Try pinging the
hostname from both machines and see if you get the same IP - maybe you
have the hostname hardcoded incorrectly in /etc/hosts ?

If that's it Bobs you're uncle ! Otherwise you may have to play with
running sendmail with trace on and work what it is trying to do and where
it is failing.

Hope it helps,

Bruce Whittaker
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Bill Verzal <BVerzal@KOMATSUNA.COM>
Sent by: IBM AIX Discussion List <aix-l@Princeton.EDU>
01/02/2005 08:59
Please respond to IBM AIX Discussion List

        To: aix-l@Princeton.EDU
        cc:
        Subject: Re: sendmail on AIX 433

Name resolution usually causes this one for me.

-------------------------------------
There's no place like /home

Bill Verzal
Project Leader, Komatsu America

(847) 970-3726 - direct
(847) 970-4184 - fax

"Myers, Drew"
<Drew.Myers@PS.NE
T> To
Sent by: IBM AIX aix-l@Princeton.EDU
Discussion List cc
<aix-l@Princeton.
EDU> Subject
sendmail on AIX 433

01/31/2005 03:39
PM

Please respond to
IBM AIX
Discussion List
<aix-l@Princeton.
EDU>

I realize 4.3.3-10 is ridiculously out of date, but I've been tasked with
resolving the issue anyway.

I have two systems, virtually identical in terms of hardware, both running
the same OS level and ptfs. They also both use the same sendmail.cf file.

One host sends mail successfully to our mail relay, one doesn't. I've
verified (3 times) with our email guys that *both* hosts are configured to
access these servers, and gone so far as to view the ACL for myself to
verify it.

Regardless, I still receive the message "Deferred: A remote host did not
respond within the timeout period." from one host, when sending mail. The
other host sends the mail just fine.

From the problematic host, I've also verified that I can connect to the
mail relay (as specified in the DS record in sendmail.cf) port 25, so I
don't believe this is a network/firewall issue.

Any suggestions?

Drew Myers



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