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undeliverable (DSN) messages not arriving

Posted on 2010-08-30
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Last Modified: 2012-06-27
Hi,

In our Exchange2k7-Outlook environment : Whenever we send a mail out to let's say "userdoesnotexist@somedomain.com" we do not receive the "user does not exist" DSN return message.

When I use message tracking on our Edge server it shows a record with the following :

Eventid : DSN
SourceContext : Failure
MessageSubject : undeliverable *subjecthere*
...

Why does it say Failure ? I have no idea where to look next.
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Question by:vinden
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6 Comments
 
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Expert Comment

by:jessmca
ID: 33556700
is there a spam filter stopping the nda responses getting in?
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LVL 3

Author Comment

by:vinden
ID: 33556722
On our HUB server we have :
-Exchange builtin antispam options enabled (I see no traces of blocked msgs in postmaster mailbox)
-Forefront Server Security (this generally only blocks foul language etc. and shows no traces of blocked NDRs)
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Expert Comment

by:jessmca
ID: 33556774
In global settings, internet message format, advanced
Is there a tick in allow non-delivery reports?
0
Will my email signature work in Office 365?

You've built an email signature using raw HTML code in Office 365, but you can't review how it looks with Transport Rules. So you have to test it over and over again before it can be used. Isn't this a bit of a waste of your time? Wouldn't a WYSIWYG editor make it a lot easier?

 
LVL 3

Author Comment

by:vinden
ID: 33556839
jessmca : I think you're talking exchange 2003.
I checked Exchn 2007 > Organization Conf > Hub Transport > Remote Domains > Default properties and there all the NDR options are ticked.
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Author Comment

by:vinden
ID: 33564710
Ok...here's a screenshot in hope someone might still shed some light on this :


The screen is the message tracking window on our Edge server.
You'll see that the undeliverable messages are disapearing in some black hole.
Knipsel.JPG
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Accepted Solution

by:
vinden earned 0 total points
ID: 33565212
Problem solved : On the edge server I noticed using Get-TransportCopy that under the parameter "GenerateCopyofDSNFor" the value 5.1.1 was not present (in other words no NDR messages were generated for "user unknown" situations).

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