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Reverse NDR Attack , Exchange 2003 SP2

Started by TOM-J-LAEL , Feb 21 2010 09:25 AM

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#1
TOM-J-LAEL

Posted 21 February 2010 - 09:25 AM

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38 posts

Last month I suffered a Reverse NDR attack on my Exchange server, even though I had recipient filtering configured correctly and turned on, on the default SMTP protocol.

I've since configured the Exchange server to do "tarpitting" , but is there any insight into why the recipient filtering didn't work on it's own accord ??

thanks,

TOMJLAEL