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Exchange 2010 - Delivery is delayed to these recipients or groups

solvers asked
Last Modified: 2013-04-03
Hi folks,

I've got a 2 month old SBS 2011 box, and I've got a small, infrequent problem with Exchange. I've got a user account, lets say user1@domain.com, that forwards on to user1's external e-mail account via a mail enabled contact. When user2@domain.com sends user1@domain.com an e-mail, the e-mail arrives at user1's external e-mail address OK. However, the sender (user2) sometimes receives the following notification after a few hours:

Delivery is delayed to these recipients or groups:

Subject: Test ....
This message hasn't been delivered yet. Delivery will continue to be attempted.

If I log into user2's OWA and look at the delivery report for that e-mail, I can see the following:

Delivery Report for user1 ¿(user1@domain.com)¿
02/11/2011 16:45
The message was submitted.
02/11/2011 16:45
This message was redirected to another email address.

03/11/2011 18:31
Message delivery is taking longer than expected. There may be system delays. For more information, contact your helpdesk.

If I poke through the logs I can see the e-mail was delivered to the destination pretty much immediately! If I look at the queues there isn't anything pending. What I'd expect to see instead of the above would be something along the lines of "the e-mail has left this e-mail system and can't be tracked anymore". Does anyone have any suggestions as to how I can resolve this issue? Why is Exchange telling me delivery is pending when the email has already got there!

Any help would be greatly appreciated.


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