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Mail System Error - Returned Mail 4.4.7

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  • Mail System Error - Returned Mail 4.4.7

    We are having a problem with Roadrunner and sometimes Yahoo users sending email to our clients. I understand that the problem most likely resides on our domain in our exchange server (2003). I have seen similiar theads on this topic but with no real clear answer on what configs in exchange may resolve this problem. Any insight to what this problem may be would be greatly appreciated. Below is the common error that the outside users are receiving:

    Reporting-MTA: dns;
    Arrival-Date: Sun, 12 Aug 2007 16:04:24 +0000
    Received-From-MTA: dns; gamer (

    Final-Recipient: RFC822; <[email protected]>
    Action: failed
    Status: 4.4.7
    Remote-MTA: dns;

  • #2
    Re: Mail System Error - Returned Mail 4.4.7

    • Numeric Code: 4.4.7

    Possible Cause: The message in the queue has expired. The sending server tried to relay or deliver the message, but the action was not completed before the message expiration time occurred. This NDR may also indicate that a message header limit has been reached on a remote server or that some other protocol timeout occurred during communication with the remote server.

    Troubleshooting: This code typically indicates an issue on the receiving server. Verify the validity of the recipient address, and verify that the receiving server is configured to receive messages correctly. You may have to reduce the number of recipients in the header of the message for the host that you are receiving this NDR from. If you resend the message, it is placed in the queue again. If the receiving server is on line, the message is delivered.

    so maybe if you could provide more information, we could give you a better hint as to what the hang up is.

    what does the recipient list (for one of the emails in question) look like?

    what is your domains master gateway and what is the mail gateway address? (dont post it, but make sure that your mail originates and terminates at the same physical address...

    run thru that list and see if anything helps... if not, then provide more info, provide some topology, and UTFSE.
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