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550 unable to relay RRS feed

  • Question

  • I have an exchange 2003 server that I just stood up, and when I try to send mail out I get a 550 5.7.1 error. can some one help me out and tell me whhy this is? as well as how to fix it?
    Thursday, May 21, 2009 8:27 PM

Answers

  • Hi Scott,

    As you have indicated you are getting error code 5.7.1 and casue of this issue could be below sctione line, Please check.

    Error Code : 5.7.1
    ................................................................................................................................................................................................
    Permissions problem::
    For some reason the sender is not allowed to email this account.  Perhaps an anonymous user is trying to send mail to a distribution list.
    Check SMTP Virtual Server Access Tab.  Try checking this box: Allow computers which successfully authenticate to relay
    User may have a manually created email address that does not match a System Policy
    ................................................................................................................................................................................................

    Alternativley you need to check whether you are able to send message thru SMTP command from your SMTP server. Its could be issue of blacklist of your IP by remote server.

    Check whether you are getting error (IP is mismatch) when sending mails thru SMTP command.

    sending email with telnet ;

    http://www.msexchange.org/articles/Sending-Email-without-Client.html
    http://www.msexchange.org/articles/MS_Exchange_SMTP_POP3_and_Telnet.html

    How to troubleshoot mail relay issues in Exchange Server 2003::
    http://support.microsoft.com/kb/895853








     

     

     


    Anil
    • Proposed as answer by Anil K Singh Saturday, May 23, 2009 6:14 AM
    • Marked as answer by Elvis Wei Friday, May 29, 2009 7:51 AM
    Saturday, May 23, 2009 6:13 AM
  • Hi Scott,

    Please also check our FAQ:

    5. How to troubleshoot NDR message 5.7.1 unable to relay issue?
    http://social.technet.microsoft.com/Forums/en-US/exchangesvrgeneral/thread/d46bf491-0e5b-4b9e-81b3-81c66b6ad81c#5

    You could read #1 #3 #4 to learn more about relay.

    Thanks,

    Elvis
    • Marked as answer by Elvis Wei Friday, May 29, 2009 7:51 AM
    Monday, May 25, 2009 3:31 AM

All replies

  • Hi Scott,

    As you have indicated you are getting error code 5.7.1 and casue of this issue could be below sctione line, Please check.

    Error Code : 5.7.1
    ................................................................................................................................................................................................
    Permissions problem::
    For some reason the sender is not allowed to email this account.  Perhaps an anonymous user is trying to send mail to a distribution list.
    Check SMTP Virtual Server Access Tab.  Try checking this box: Allow computers which successfully authenticate to relay
    User may have a manually created email address that does not match a System Policy
    ................................................................................................................................................................................................

    Alternativley you need to check whether you are able to send message thru SMTP command from your SMTP server. Its could be issue of blacklist of your IP by remote server.

    Check whether you are getting error (IP is mismatch) when sending mails thru SMTP command.

    sending email with telnet ;

    http://www.msexchange.org/articles/Sending-Email-without-Client.html
    http://www.msexchange.org/articles/MS_Exchange_SMTP_POP3_and_Telnet.html

    How to troubleshoot mail relay issues in Exchange Server 2003::
    http://support.microsoft.com/kb/895853








     

     

     


    Anil
    • Proposed as answer by Anil K Singh Saturday, May 23, 2009 6:14 AM
    • Marked as answer by Elvis Wei Friday, May 29, 2009 7:51 AM
    Saturday, May 23, 2009 6:13 AM
  • Hi Scott,

    Please also check our FAQ:

    5. How to troubleshoot NDR message 5.7.1 unable to relay issue?
    http://social.technet.microsoft.com/Forums/en-US/exchangesvrgeneral/thread/d46bf491-0e5b-4b9e-81b3-81c66b6ad81c#5

    You could read #1 #3 #4 to learn more about relay.

    Thanks,

    Elvis
    • Marked as answer by Elvis Wei Friday, May 29, 2009 7:51 AM
    Monday, May 25, 2009 3:31 AM