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Do I use an SMTP Connector???

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  • Do I use an SMTP Connector???

    Hi,

    Exchange 2003.

    I am wondering, everytime someone from within our organization attempts to send something to someone with an address that ends in @att.net, it ends up in the Queue, and the user gets a:

    Subject: Delivery Status Notification (Delay)

    This is an automatically generated Delivery Status Notification.

    THIS IS A WARNING MESSAGE ONLY.

    YOU DO NOT NEED TO RESEND YOUR MESSAGE.

    Delivery to the following recipients has been delayed.

    ********@att.net


    What could be causing this??? I've been looking at other posts but havent really found anything that might remedy this. Every other domain that is sent to seems to go through fine. This att.net one always hangs up. Is this something that an SMTP connector may help resolve? I have been reading about them, but cant seem to grasp exactly what they do, and whether or not one can be setup to just deal with mail to that att.net domain.

    Appreciate any help!

    Jeremy

  • #2
    Re: Do I use an SMTP Connector???

    A delayed message means that the Exchange server was unable to connect to the domain's mail server to transfer the message to it and will try again later.

    Does the message eventually go through?

    Here's an article about SMTP connectors
    Regards,
    Jeremy

    Network Consultant/Engineer
    Baltimore - Washington area and beyond
    www.gma-cpa.com

    Comment


    • #3
      Re: Do I use an SMTP Connector???

      Yeah, it seems to eventually go through, but it does take along time. the guy that is getting the messages back is getting eager for me to give him a reason why its happening, and what I am doing to fix it. If it eventually goes through, is there even anythign I can do to speed it up, or is it just one of those things?

      Thanks for your help.

      Comment


      • #4
        Re: Do I use an SMTP Connector???

        With the major ISPs you have to be sure that your DNS is configured correctly - forward and reverse DNS and the SMTP Banner is correct.
        They will also sometimes throttle the connections or just be overloaded.

        When I do get domains that there seems to be a persistent issue with delivery, then I will usually create an SMTP Connector to route the email through the ISPs SMTP Server. I then add domains that I am having problems with to the list. That way I can keep the queues clear and the email delivered in a timely manner.

        ISPs have their own rules on what they will and will not accept, and trying to work within those rules can sometimes be more hassle than its worth.

        Simon.
        --
        Simon Butler
        Exchange MVP

        Blog: http://blog.sembee.co.uk/
        More Exchange Content: http://exchange.sembee.info/
        Exchange Resources List: http://exbpa.com/
        In the UK? Hire me: http://www.sembee.co.uk/

        Sembee is a registered trademark, used here with permission.

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