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Exchange 2003 can receive email but not send to external domains.

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  • Exchange 2003 can receive email but not send to external domains.

    I have exchange 2003 configured and I can receive all email but I can only send to internal address. External address get stuck in the queue.

  • #2
    Re: Exchange 2003 can receive email but not send to external domains.

    hi you have to check the following :
    try 1:
    stop and then start your SMTP service
    try 2:
    check your DNS server because if the exchange didn't know the destenation IP address your external email well stuck at the queue
    to me i recommand to start with try2 becase you said that internal email reach the destenation.

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    • #3
      Re: Exchange 2003 can receive email but not send to external domains.

      For better troubleshooting, enable logging of your SMTP Virtual Server. WHen u enable it, u can see why you u cannot send mail to the Internet. The first step u can do is verify permissions in ur firewall or the AV configuration. The try to check your DNS using dnslookup, try to resolve URL to IP.

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      • #4
        Re: Exchange 2003 can receive email but not send to external domains.

        If you click on the queue, what reason does it give for the queue?
        Does your ISP allow connections to remote SMTP server?

        Drop in to a command prompt and type

        telnet maila.microsoft.com 25

        if you get a flashing cursor (ie no text) then port 25 is blocked.
        You will need to call your ISP to get it unblocked, or you will need to configure an SMTP Connector to route outbound email through their SMTP Server.
        http://www.amset.info/exchange/smtp-connector.asp

        Simon.
        --
        Simon Butler
        Exchange MVP

        Blog: http://blog.sembee.co.uk/
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        Sembee is a registered trademark, used here with permission.

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