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Thread: Outgoing mail gets stuck in deferred queue

  1. #1
    baffle is offline Beginner Member
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    Jun 2012
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    Exclamation Outgoing mail gets stuck in deferred queue

    Hi, I'm running Zimbra 8.0.3 OSE on Ubuntu 12.04 LTS. After switching to a IPv4/IPv6 dual stack setup, it seems that all outgoing mail gets stuck in the deferred queue, seemingly due to a problem with the milter:

    Apr 27 11:08:52 mail postfix/smtp[1046]: 1DA9540129: to=<>, relay=::1[::1]:10026, conn_use=2, delay=390107, delays=390104/2.6/0.04/0.36, dsn=4.7.1, status=deferred (host ::1[::1] said: 451 4.7.1 id=31030-01-2 - Temporary MTA failure on relaying, from MTA(smtp:[::1]:10030): 451 4.7.1 Service unavailable - try again later (in reply to end of DATA command))
    If I requeue the mails via the queue management interface, they get sent.

  2. #2
    phoenix is online now Zimbra Consultant & Moderator
    Join Date
    Sep 2005
    Vannes, France
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    I'm not really sure if there's a question in your post. I'd suggest you revert to an IPv4 only system and check bugzilla (including the resolved/fixed reports) to see if anything has been filed for this, file a bug report if you can't find anything.


    Acompli: A new adventure for Co-Founder KevinH.

  3. #3
    Bill Brock is offline Outstanding Member
    Join Date
    May 2007
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    There was a problem with 8.0.2 and IPv6. But according to the announcement forum 8.0.3 should have fixed IPv6 blocking delivery. This may be another issue.

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