The Perfect Setup - Ubuntu 6.10 Server (Edgy Eft) - connection timeouts

Discussion in 'HOWTO-Related Questions' started by thegestetner, Dec 12, 2006.

  1. thegestetner

    thegestetner New Member

    Hi all,

    I've followed this tutorial practically to the letter - kudos to the author, it's got me farther than anything else on the interwebs.

    Anticipating that I would end up on blacklists because of the newness of my domain, I registered for a backup MX server. However, I've sent several test messages to my server, and they have yet to get through, from either one of the servers. My ISP said that they don't block any ports, so I'm sure that's not an issue. I can also ping both of these servers without problems. When I tail /var/log/mail.log, this is what keeps coming up:

    Dec 12 02:22:46 unendurable postfix/qmgr[16876]: 3689D2ECD8: from=<[email protected]>, size=618, nrcpt=1 (queue active)
    Dec 12 02:23:16 unendurable postfix/smtp[17778]: connect to[]: Connection timed out (port 25)
    Dec 12 02:23:16 unendurable postfix/smtp[17778]: 3689D2ECD8: to=<[email protected]>, relay=none, delay=188209, delays=188179/0.02/30/0, dsn=4.4.1, status=deferred (connect to[]: Connection timed out)

    There's no firewall or anything on the server itself; the router does that, and I've checked its settings a million times over.
    Any ideas, anyone?
  2. till

    till Super Moderator Staff Member ISPConfig Developer

    Is the server you want to relay trough? Can you connect to eith thr command:

    telnet 25

    After you have established the connection to your postfix mail server type

    ehlo localhost

    then type:


    to close the connection.
  3. thegestetner

    thegestetner New Member

    Hmm, that's strange - doesn't seem to want to work either. Looks like I found the problem, but I can't figure out why it exists.
  4. falko

    falko Super Moderator ISPConfig Developer

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