Source: Microsoft Support
RAPID PUBLISHING
RAPID PUBLISHING ARTICLES PROVIDE INFORMATION IN RESPONSE TO EMERGING OR UNIQUE TOPICS, AND MAY BE UPDATED AS NEW INFORMATION BECOMES AVAILABLE.
↑ Back to the top
Mail from external sources will queue in the Deferred Delivery Queue.
↑ Back to the top
This can be caused by a loop to an external smart host. If mail comes in for a
non-authoritative email domain, and relaying is allowed, the mail will try to route
back out to the Internet if the recipient does not exist in the org. If the mail is
sent to a smart host that is configured to forward mail to that email domain back
into the Exchange Organization, then we will get a loop. The mail will queue in
deferred delivery until the loop is removed.
↑ Back to the top
To resolve this type of issue add the
email domain to the recipient policy, or restrict relaying to force NDR's to be sent properly.
↑ Back to the top
MICROSOFT AND/OR ITS RESPECTIVE SUPPLIERS MAKE NO REPRESENTATIONS ABOUT THE SUITABILITY OF THE INFORMATION CONTAINED IN THE DOCUMENTS AND RELATED GRAPHICS PUBLISHED ON THIS WEBSITE FOR ANY PURPOSE. THE DOCUMENTS AND RELATED GRAPHICS PUBLISHED ON THIS WEBSITE COULD INCLUDE TECHNICAL INACCURACIES OR TYPOGRAPHICAL ERRORS. CHANGES ARE PERIODICALLY ADDED TO THE INFORMATION HEREIN. MICROSOFT AND/OR ITS RESPECTIVE SUPPLIERS MAY MAKE IMPROVEMENTS AND/OR CHANGES IN THE PRODUCT(S) AND/OR THE PROGRAM(S) DESCRIBED HEREIN AT ANY TIME.
For more information on the terms of use, click on the link below:
http://support.microsoft.com/tou/
↑ Back to the top