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Thread: 451 Temporary local problem - to one domain

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  1. #1
    Join Date
    Oct 2008
    Dahlonega, Ga
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    Default [Solved] 451 Temporary local problem - to one domain

    I've been trucking along just fine until last Thursday, then this error pops up for multiple accounts on my server to multiple accounts to that domain. All other mail flows like a river.

    I've preformed no updates to the OS nor ZCS since I moved from 7.1.3 to 7.1.4 several weeks ago.

    Feb 28 08:44:17 mail postfix/smtp[20052]: 42388A2C151: to=<some.user@LumpkinCounty.GOV>,[]:25, delay=67611, delays=67608/0.27/3/0.15, dsn=4.0.0, status=deferred (host[] said: 451 Temporary local problem - please try later (in reply to end of DATA command))
    postqueue -p
    -Queue ID- --Size-- ----Arrival Time---- -Sender/Recipient-------
    497AFA2C055     4697 Tue Feb 28 08:58:14
    (host mail.LumpkinCounty.GOV[] said: 451 Temporary local problem - please try later (in reply to end of DATA command))
    If I send a test message to, then I get a 550 Authentication Required bounce from that server.

    I'm running :

    uname -a
    Linux mail 2.6.32-24-server #43-Ubuntu SMP Thu Sep 16 16:05:42 UTC 2010 x86_64 GNU/Linux
    Ubuntu 10.04.4 LTS
    zmcontrol -v
    Release 7.1.4_GA_2555.UBUNTU10_64 UBUNTU10_64 FOSS edition.
    One last bit of information, I have emptied the deferred queue of the messages going to the domain and created a new message just from me to their admin, and it still gave me the same error. I was concerned about one of the messages being "corrupt" and causing the issue, but that isn't the case it seems.

    If anyone else out there has a (sort of) exact system as mine (see above). I'd like to give you a test e-mail address to send to just to see what happens on your system. Just send me a PM.

    Any ideas?
    Last edited by n4bbq; 02-28-2012 at 12:55 PM. Reason: Added some more data.

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