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

Posted on 2012-08-21
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
    LVL 3

    Accepted Solution

    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
    Perfect.  Thank you
    LVL 3

    Expert Comment

    you're welcome

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