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#550 4.4.7 QUEUE.Expired; message expired ##

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  • #550 4.4.7 QUEUE.Expired; message expired ##

    The users cannot send any mails. We are getting this #550 4.4.7 QUEUE.Expired; message expired ## when trying to send ..

    Where should i check and how could i resolve this issue.

    Any help would be much appreciated.

  • #2
    Re: #550 4.4.7 QUEUE.Expired; message expired ##

    You need to look at queue viewer to see if the messages are sitting in the queues. If they are then look to see if you can make connections on port 25 to remote SMTP servers.

    telnet maila.microsoft.com 25

    That test must be done from the Exchange server.
    If you cannot then something is blocking port 25.

    Simon.
    --
    Simon Butler
    Exchange MVP

    Blog: http://blog.sembee.co.uk/
    More Exchange Content: http://exchange.sembee.info/
    Exchange Resources List: http://exbpa.com/
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    Sembee is a registered trademark, used here with permission.

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