Re: mail malady - dns/postfix

From: Norberto Meijome (freebsd_at_meijome.net)
Date: 08/31/05

  • Next message: Philip Hallstrom: "Re: FTP Permissions" 
    Date: Thu, 01 Sep 2005 01:23:20 +1000
To: Jerod Prothe <jprothe@usd217.org>

    Jerod Prothe wrote:

    > The problem is, now local citizens are trying to send mail to us,

    Jerod,
    pls define 'local citizens'. My view of "local" is surely different to
    yours.

    > but
    > they are getting bounce messages reporting that it couldn't talk to
    > otto, the old NT box.

    yup,
    # telnet otto.usd217.org 25
    Trying 209.42.72.250...
    telnet: Unable to connect to remote host: Connection refused

    BTW:

    whois usd217.org
    [...]
    Name Server:GALLEY.USD217.ORG
    Name Server:OTTO.USD217.ORG

     From Sydney, AU, the DNS records seem to have propagated:

    $ nslookup.exe
    Default Server: xxxxx
    Address: 10.168.100.10

    > set type=ns
    > usd217.org
    Non-authoritative answer:
    Server: xxxxx
    Address: 10.168.100.10

    usd217.org nameserver = otto.usd217.org
    usd217.org nameserver = galley.usd217.org

    otto.usd217.org internet address = 209.42.72.250
    galley.usd217.org internet address = 209.42.72.2

    and MX:
    usd217.org mail exchanger = 50 galley.usd217.org.

    but from TX,USA:
    # nslookup
    > set type=ns
    > usd217.org
    Server: 207.218.192.38
    Address: 207.218.192.38#53

    usd217.org nameserver = rolla.usd217.org.
    usd217.org nameserver = ns1.pld.com.
    usd217.org nameserver = ns2.pld.com.
    usd217.org nameserver = pta6000.pld.com.

    and MX:
    usd217.org MX preference = 10, mail exchanger = otto.usd217.org

    otto.usd217.org internet address = 209.42.72.251

    so it seems that, to begin with, you have some inconsistency in what we
    can see of your network, the answers i'm seeing from this USA-based NS
    being the old ones.

    Notice that from USA, I'm getting MX pointing to otto., which it seems
    not to be taking connections on tcp/25. galley OTOH smtp listening on
    tcp/25.

    > There may be more at stake here: If this doesn't work well, then any
    > credibility that I have with my employer concerning using open-source
    > may be exhausted.

    this doesnt seem at all a problem of 'MS is better than OS' or otherwise
    (wont enter in that argument anyway) - just DNS not propagated yet, and
    not much you can do about that but to wait it out, other than giving
    otto's IP to galley for the time being so all smtp traffic goes to the
    box that is working.

    Next time, you may want to reduce your refresh settings in your zone
    before you perform a drastic change.

    > Any other conf's I should show?
    >

    I'm not too sure the exact configuration you have / intend to have. do
    you want galley to forward emails to otto?

    regards,
    beto
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