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  • Allow other servers to verify addresses

    Over the last few days I have had some problem sending to certain domains. When I use the SMTP DIAG tool I get the following error

    550-Verification failed for <[email protected]>
    550-No Such User Here
    550 Sender verify failed

    I am using

    Windows 2003 SBS SP1
    Exchange 6.5 SP2

    How would I go about letting server verify address securely?

    Thanks

  • #2
    Re: Allow other servers to verify addresses

    That isn't an Exchange message.
    Were you testing your own server or the remote server?

    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.

    Comment


    • #3
      Re: Allow other servers to verify addresses

      yes it was a remote server I used the tool against. AS it will not let us send mail to it. Although if I use a gmail account mail routes through with no problem.


      thanks

      brian

      Comment


      • #4
        Re: Allow other servers to verify addresses

        If you were testing to a remote server then the message means what it says. The server you have connected to doesn't recognise the address.
        What it does not mean is that you are connecting to the correct server. You will need to use offsite tools such as those at dnsstuff.com to verify if what you are getting for DNS records for the domain is valid or not.

        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.

        Comment

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