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#550 5.1.1 RESOLVER.ADR.RecipNotFound; not found ## Is not being sent to external emails

Posted on 2012-08-21
Medium Priority
Last Modified: 2012-08-21
I have removed a user from AD and their email address from Exchange 2007.

When an internal email is sent to this deleted account, the recipient receives:

"#550 5.1.1 RESOLVER.ADR.RecipNotFound; not found ## " as they should.

But, if someone using an external email account sends to the deleted email address, they do not receive any bouce back at all.  I would like for everyone to receive a bounce back if the email address has been deleted from Exchange.

Is there a setting to turn this on or off?

Thank you for your help!
Question by:Alene IT
  • 2

Accepted Solution

ExchangePandit earned 2000 total points
ID: 38317554
Please follow these steps to enable the NDR messages:
Open the Exchange Management Console
Expand the Organization Configuration folder
Click on Hub Transport
Select Remote Domains
Right-click the Default tab
Click on the Message Format
to turn on NDR's check "Allow non-delivery reports"

I hope this what you are looking for.


Author Comment

by:Alene IT
ID: 38318403
Perfect.  Thank you

Expert Comment

ID: 38318516
you're welcome

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