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Thread: [SOLVED] Some Outside emails are being delayed.

  1. #31
    tbovingdon is offline Special Member
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    upgraded to 4.5.7.

    logs are still showing "timeout after DATA" and send emails are being bounced with a 421 error. stupid part is spam is getting through.

    i am at a loss.

    if i can't fix this in the next few hours i will lose this customer and they will NOT upgrade to the network edition.

  2. #32
    mmorse's Avatar
    mmorse is offline Moderator
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    Are you at liberty to move it back to it's prior location for a bit? ie: To see if it's a net thing, and wasn't the act of rebooting with a new setting (remember some things don't apply till restart).
    Quote Originally Posted by tbovingdon View Post
    has been working for a month, we turned off on friday to move it to the server room, then this happened.
    Last edited by mmorse; 10-03-2007 at 05:15 AM.

  3. #33
    tbovingdon is offline Special Member
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    i *THINK* i figured it out.

    (went from router ->gigabyte switch -> 10 /100 switch to router -> gigabyte switch)
    after searching the net for "timeout after data" everything pointed to MTU settings.... well i changed the link speed on the network card and restarted... guess what emails started to appear.... (in the inboxes)
    Last edited by tbovingdon; 10-03-2007 at 12:12 PM.

  4. #34
    tbovingdon is offline Special Member
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    thought wrong....

    everything is now deferred,

    Code:
    Oct  3 08:39:21 mail postfix/cleanup[15811]: 2F23B125003D: message-id=<AKEJLOOOPEKKJMIBDKJGIEAEAPAB.jeff@example.com>
    Oct  3 08:39:23 mail postfix/qmgr[4364]: 2F23B125003D: from=<jeff@example.com>, size=180546, nrcpt=1 (queue active)
    Oct  3 08:39:23 mail postfix/smtpd[15808]: disconnect from unknown[192.168.71.109]
    Oct  3 08:39:53 mail postfix/smtp[15225]: connect to remote.com[64.29.145.9]: Connection timed out (port 25)
    Oct  3 08:39:53 mail postfix/smtp[15225]: 2F23B125003D: to=<jvella@remote.com>, relay=none, delay=32, status=deferred (connect to remote.com[64.29.145.9]: Connection timed out)
    Last edited by tbovingdon; 10-03-2007 at 05:43 AM.

  5. #35
    mmorse's Avatar
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    Quote Originally Posted by tbovingdon View Post
    i *THINK* i figured it out.
    after searching the net for "timeout after data" everything pointed to MTU settings.... well i changed the link speed on the network card and restarted... guess what emails started to appear....
    Quote Originally Posted by mmorse View Post
    hm-some web searches find a lot a MTU issues for people with 'timeout after DATA'
    so outgoing issues now? from=<jeff@example.com> to=<jvella@remote.com> & you wrote emails 'started to appear' (assuming that meant incoming mail goes into mailboxes just fine)

    could you post a new /var/log/zimbra.log? (might as well post the matching /opt/zimbra/log/mailbox.log with it)
    dns issues & lookups...

    incoming mail problem: just want to confirm-your not getting any more returned mail when you test from the outside?
    Last edited by mmorse; 10-03-2007 at 12:19 PM.

  6. #36
    tbovingdon is offline Special Member
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    it appears problem solved. mtu packet size is different between 10/100 and 10/100/1000. i don't really belive that but it is now working.

    deferred outgoing were due to dns lookups being turned off.

    Thanks for all you help!!!!

  7. #37
    mmorse's Avatar
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    took 4 pages...but I'm glad it's resolved
    Last edited by mmorse; 10-03-2007 at 12:25 PM. Reason: smiley for fun-meant to sound happier!

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