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Thread: Mail Forwarding

  1. #1
    Join Date
    Mar 2014
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    Default Mail Forwarding

    I just inherited a Zimbra mail server and have never administered Zimbra in the past. It is at version 6.0.10, which I know is not up to date. My current question is with Mail Forwarding.

    My problem is that when I try to have mail forwarding for an account I get an error back to the original mailer with the following error: 550
    Sender Authorization check failed - psmtp (in reply to RCPT TO command)

    I can email directly from zimbra to the same account that I attempted to do mail forwarding with.

    I really have no idea what steps I am missing, it seems pretty straight forward, but it just isn't working.

    If it makes a different, the account that I am trying to forward to is a gmail account which seems to be the problem. I have successfully done a mail forward from sender (hotmail) to mail forwarding (yahoo). Is there something I need to do in order for this to work with gmail accounts? Update: It seems to only be when the sender is gmail and the mail forwarder is gmail as well, even if they are different domains, example sender is and the mail forwarder is going to another google business domain.

    Thanks in advance for any help.
    Last edited by nwparker; 03-05-2014 at 02:24 PM.

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