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Thread: Zimbra 8.0.4 - 451 4.7.1 service unavailable

  1. #1
    Join Date
    Oct 2013
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    Default Zimbra 8.0.4 - 451 4.7.1 service unavailable

    Hi all,
    i'm a new zimbra user, so i don't know much about it.

    When my external users try to send an email with 3mb more attachements, they got this error "451 4.7.1 service unavailable". They can't to send to an external domain and same domain too. They can send only using the webmail interface with any attacchements 10mb or more)

    I googled and found this solution, but it doesn't work for me.

    This is the output of "zmlocalconfig | grep milter" command:

    Code:
    zmlocalconfig | grep milter
    milter_bind_port = 0
    milter_command_timeout = 60
    milter_connect_timeout = 60
    milter_content_timeout = 300
    milter_in_process_mode = false
    milter_max_idle_time = 120
    milter_thread_keep_alive_time = 120
    milter_write_chunk_size = 1024
    milter_write_timeout = 120
    Please help....

    Thanks to all.

  2. #2
    Join Date
    Aug 2010
    Location
    England
    Posts
    39
    Rep Power
    5

    Default

    This may be related to https://bugzilla.zimbra.com/show_bug.cgi?id=93569 Investigating that suggests that increasing milter_max_idle_time may help. (We tried 300)
    Gren Elliot
    Lead Engineer - Server
    Zimbra | Community & Collaboration

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