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Thread: Using Zimbra with an exchange server problem

  1. #1
    Join Date
    Mar 2008
    Rep Power

    Default Using Zimbra with an exchange server problem

    I am brand new to Zimbra and very new to exchange administration.
    I have a functional exchange server which delivers mail to my Zimbra desktop client fine but I cannot send mail. The log says:

    2008-03-07 12:12:49,469 INFO [btpool0-51] [;mid=2;ip=;ua=ZimbraWebClient - [unknown] (Win)/0.0;] offline - SMTP send failure: Fwd: Message Title

    I am certain that it is the account setup in Zimbra for outgoing mail.
    I don't know how to find the correct servername and port because I have tried every combination of what I can see on my exchange server.


    MX1.DOMAIN.COM ports 25, 143 and 993
    SMTP.DOMAIN.COM ports 25, 143 and 993

    Where DOMAIN is our real domain name.

    What am I missing?


  2. #2
    Join Date
    Oct 2005
    Thatcher, AZ
    Rep Power


    Hi, and welcome to the Zimbra forums!

    Are you connecting via pop3 or IMAP? Do you have TLS turned on? TLS is encryption for pop3/imap. If you have it on, you have to be sure to tell Zimbra Desktop.

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