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#550 Requested action not taken: mailbox unavailable ## RRS feed

  • Question

  • I am trying to send a newsletter from an web app that uses exchange 2007.

    All hotmail & live users are getting the above error message.

    Plenty of other customers are getting their email with no problems.

    What do i need to do.

    Thanks in advance

    Tuesday, December 15, 2009 9:41 AM

Answers

  • So, you want to use exchange to relay newsletter for application, however, the newsletter can’t be relayed to Hotmail and live users’ mailboxes, right?

    Check info:

    1.      What’s the exchange topology?

    2.      Have the mail flow to Hotmail ever worked before?

    3.      Does the mail flow work when sending the mails to other domains?

    4.      Does the Hotmail e-mail address valid? Can internal users send regular mails to Hotmail users?

    5.      Is there any error event in the application log on the transport server?

    6.      Please try the troubleshooting steps in this article (Hotmail)

    7.      Please enable protocol logging on the send connector, and reproduce the issue. Also please monitor the Queue Viewer

    Notes: It is possible that Hotmail may be turfing e-mails from your domain, suspecting it is a possible spam relay server (Please contact Hotmail Support to verify)


    James Luo
    TechNet Subscriber Support (http://technet.microsoft.com/en-us/subscriptions/ms788697.aspx)
    If you have any feedback on our support, please contact tngfb@microsoft.com
    • Proposed as answer by Alan.Gim Friday, December 25, 2009 1:29 AM
    • Marked as answer by Alan.Gim Friday, December 25, 2009 9:45 AM
    Wednesday, December 16, 2009 2:41 AM

All replies

  • So, you want to use exchange to relay newsletter for application, however, the newsletter can’t be relayed to Hotmail and live users’ mailboxes, right?

    Check info:

    1.      What’s the exchange topology?

    2.      Have the mail flow to Hotmail ever worked before?

    3.      Does the mail flow work when sending the mails to other domains?

    4.      Does the Hotmail e-mail address valid? Can internal users send regular mails to Hotmail users?

    5.      Is there any error event in the application log on the transport server?

    6.      Please try the troubleshooting steps in this article (Hotmail)

    7.      Please enable protocol logging on the send connector, and reproduce the issue. Also please monitor the Queue Viewer

    Notes: It is possible that Hotmail may be turfing e-mails from your domain, suspecting it is a possible spam relay server (Please contact Hotmail Support to verify)


    James Luo
    TechNet Subscriber Support (http://technet.microsoft.com/en-us/subscriptions/ms788697.aspx)
    If you have any feedback on our support, please contact tngfb@microsoft.com
    • Proposed as answer by Alan.Gim Friday, December 25, 2009 1:29 AM
    • Marked as answer by Alan.Gim Friday, December 25, 2009 9:45 AM
    Wednesday, December 16, 2009 2:41 AM
  • Any update?
    James Luo
    TechNet Subscriber Support (http://technet.microsoft.com/en-us/subscriptions/ms788697.aspx)
    If you have any feedback on our support, please contact tngfb@microsoft.com
    Tuesday, December 22, 2009 1:32 AM