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Thread: [SOLVED] Zimbra on OSX - returned mail, hostname problem?

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  1. #1
    Join Date
    Mar 2007
    Riga, Latvia
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    Thumbs up [SOLVED] Zimbra on OSX - returned mail, hostname problem?

    At first, thank you, Zimbra people, for good work and continous efforts... :-)
    Congrats for your business victory! Ummm...

    My OpenSource Zimbra installation (4.5.3 GA) works on client OSX Tiger (10.4.9) installation for 6 months.
    I have ~ 30 accounts, exchanging ~300 e-mails every day.
    Several accounts grow on size over 1 Gb now, but Zimbra and PPC G4 coping with it quite OK.
    (Machine - Mac G4 700 MHz, 1.25 Gb RAM, 120 Gb HD, directly connected to internet)

    There are no big issues with workflow, only few - sometimes logger stops working by itself, but server continues normally, and thats all... EXCEPT:

    Just SOME other MTAs is returning/not accepting mail from my Zimbra because on wrong/not qualified HOSTNAME.

    I have static IP and FQDN both for "" and "webmail.".
    (Notice: I choose name "webmail" because I felt it good for my purpose and then registered that name "" with my TLD. In this way I got address "" pointing to my machine for user access to webmail interface).

    My HOSTS file:
    # Host Database
    # localhost is used to configure the loopback interface
    # when the system is booting.  Do not change this entry.
    ##       localhost broadcasthost webmail
    When I installed Zimbra, I found that ONLY way to get Zimbra installation working is to set OSX Computer Name to "webmail", NOT ""," or just "". When I set Computer Name to other than "webmail", installation never succeeded. I don't remember exact reasons but there was issues about LDAP not finding localhost and something like.
    OSX, as always, automagically adds .local to Computer Name.
    So, I notice in logs that Postfix manifests to outside world as "webmail.local". And this is not good.
    And I see that it is problem here:

    --sample from returned mail--
    <>: host[] refused to talk to me: 501 5.7.1
        <webmail.local>: Helo command rejected: Host not found
    Reporting-MTA: dns; webmail.local
    X-Postfix-Queue-ID: C6FE76C4022
    X-Postfix-Sender: rfc822;
    Arrival-Date: Tue,  6 Nov 2007 10:46:07 +0200 (EET)
    Final-Recipient: rfc822;
    Action: failed
    Status: 5.0.0
    Diagnostic-Code: X-Postfix; host[] refused to talk to
        me: 501 5.7.1 <webmail.local>: Helo command rejected: Host not found
    --end of sample--

    Is there any way to tell Zimbra Postfix to use FQDN when talking to other mailservers?

    As I see, only few MTAs checks this now, because my server succesfully exchanges mails with LOT of servers on internet without problems for almost half-year, but some mails fail...

    Thank you,
    Last edited by McBurtnieks; 11-14-2007 at 05:58 PM. Reason: problem solved

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