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Undeliverable: Two recipients are configured with the same e-mail address.

Posted on 2008-10-08
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Last Modified: 2009-10-06
A user sends out a mass email to multiple participants(over 20 making it hard to find the culrpit) then gets the following message.   The AD account student01 is NOT included in the email.  Student01 does not have a email box associated in it in AD and never has. It's not even listed in the GAL.  

Please help me troubleshoot this problem.

From: System Administrator
Sent: Wednesday, October 08, 2008 10:05 AM
To: student01
Subject: Undeliverable: Meeting REMINDER - 10/15/08 at 6:00 p.m.
 
Your message did not reach some or all of the intended recipients.
 
Subject: Meeting REMINDER - 10/15/08 at 6:00 p.m.
Sent: 10/8/2008 10:05 AM
 
The following recipient(s) could not be reached:
 
student01 on 10/8/2008 10:05 AM
A configuration error in the recipient's e-mail system
prevented delivery of this message. Two recipients are configured with
the same e-mail address. Contact your administrator.
<mail.server.com #5.1.4>

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Question by:sonic4269
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by:michaelgoldsmith
ID: 22672190
Is there a local rule that could be causing this?
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sonic4269 earned 0 total points
ID: 23152807
I deleted the "student01" account from AD since it was no longer used and the problem has not re-occurred.  
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