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Block initial smtp attempt

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Block initial smtp attempt - 6.Dec.2006 4:35:28 PM   
ibanyard

 

Posts: 4
Joined: 19.May2006
Status: offline
Not sure that Exchange supports this, but I guess this would fit better with isa. I've seen other products that will block an initial inbound smtp session forcing the sending smtp server to q and then retry later. This apparently helps prevent smtp spam bots as they tend to use a list of addresses the once without retrying.....

Post #: 1
RE: Block initial smtp attempt - 9.Dec.2006 9:16:15 AM   
tshinder

 

Posts: 50013
Joined: 10.Jan.2001
From: Texas
Status: offline
Interesting feature.

Thanks!
Tom

_____________________________

Thomas W Shinder, M.D.

(in reply to ibanyard)
Post #: 2
RE: Block initial smtp attempt - 26.Feb.2008 12:26:23 PM   
AbqBill

 

Posts: 478
Joined: 3.Jun.2003
From: Albuquerque NM USA
Status: offline
Hi ibanyard,

It sounds like you're talking about greylisting. A good anti-spam product can do it. My current favorite is Vamsoft's Open Relay Filter Enterprise Edition (ORFEE).

Bill

(in reply to ibanyard)
Post #: 3

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