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Exchange: Set up rule for No NDR with particular senders

Posted on 2008-09-29
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Last Modified: 2012-05-05
We have a customer who has recently been involved in a bouncing cycle with a list server - the customer's server bounces the e-mail from the list server to the list server's response address & the list server was responding with bad commands (a majordomo list server).  Anyway, the cycle has been caught & manually cleaned up via freezing the outbound queue & manually deleting the bounces.

Can someone direct me to a simpler method of automating a particular sender into a No NDR deletion while retaining normal NDR bounces?
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Question by:Barthax
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naughtynat earned 1500 total points
ID: 22606994
http://www.nemx.com/products/SecurExchange/howto/DirectoryHarvestAttack.html

looks like a possible solution as well but would probably mean some more software.

With the exchange software itself other than some filtering you can do, the only way seems to be via 3rd party software

http://forums.msexchange.org/m_1800471565/mpage_1/key_/tm.htm#1800471764

Some of the info from Guru Sembee.

Looks like its pretty hard to do it effectively without some additional software. There is however some filtering recommendations which should give you a start.
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Author Comment

by:Barthax
ID: 22612268
Thanks, I guess it'll be the same answer in the end for us.  As it happens, it's not an NDR flood - it is a list server receiving the customer's NDRs & bouncing them back as they are invalid commands on the list server!
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LVL 19

Author Closing Comment

by:Barthax
ID: 31501162
The answer was the opposite of the circumstances mentioned, but is essentially the same answer in the end. ;)
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