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SMTP 553 Error HELP!!!!

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  • SMTP 553 Error HELP!!!!

    I am running Exchange 2003 on SBS 2003. I can recieve email from anywhere, and can send to just about anywhere, except that when I send emails to some addresses I get the following error message:

    Your message did not reach some or all of the intended recipients.



    Subject: Maya#106102018865000

    Sent: 10/20/2006 5:06 PM



    The following recipient(s) could not be reached:



    [email protected] on 10/20/2006 5:08 PM

    The message cannot be delivered due to a configuration error on the server. Please contact your Administrator.

    < imbarc-nj01.nj.ssmb.com #5.3.0 SMTP; 553 5.3.0 <[email protected]>... Unknown user - sorry.>


    Please Help!!

  • #2
    Re: SMTP 553 Error HELP!!!!

    If you have problem sending only this specific recipient - the problem is on his side.
    Anyway, try the followings:
    1. Track the problem using SmtpDiag from MS:
    http://www.microsoft.com/downloads/d...displaylang=en
    http://www.msexchange.org/tutorials/...-SMTP-DNS.html
    2. Check your DNS configuration (A record + PTR) with your ISP.
    CNE 5, CCA, MCSE NT4.0-2003, MCSE 2003 messaging, Exchange Server MVP.
    Tzahi Kolber - IT Supervisor
    Polycom Israel.

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    • #3
      Re: SMTP 553 Error HELP!!!!

      did you ever dial the phone and get that message "we're sorry the number you have reached is not in service, please check the number and dial again......" well this message is the email equivalent

      Welcome to 2006
      "...if I turn out to be particularly clear, you've probably misunderstood what I've said” - Alan Greenspan

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