We recently setup a client using exchange as follows

Internet-->ASSP-->Exchange
 
And Exchange-->ASSP-->Internet

We put ASSP in the outbound path to allow for the mail interface to work.
For some reason, we could not get outbound to work unless we specified a
smarthost in ASSP.  Then all worked great.  We can't figure out why!  Ideas?

MD

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Matti Haack
Sent: Monday, March 26, 2007 12:18 PM
To: Questions and Answers for users of ASSP Anti-Spam SMTP Proxy
Subject: Re: [Assp-user] Need smarthost for outbound?

ASSP is not a mailserver it is only a proxy, which should be positioned
before your server
MD> 1.  Does one  need a smarthost for outbound mail?  (Or can ASSP 
MD> handle sending direct to  destination MTA)
Your Server will send them  directly. There is no need to pass them through
ASSP.

MD> 2.  If ASSP  listens on only 1 port , how can it distinguish between 
MD> incoming and outgoing  SMTP actions?  (Or does relay have to be set)
ASSP listens only on the incomming. Normally even your users email will be
subbmitted by SMTP. So the mailflow is like this:

Incomming Mail:
internet->assp->YourMailserver->UserMailbox

Outgoing
Client->assp->YourMailServer->Destination

Matti

--
Matti Haack - Hit Haack IT Service Gmbh
Poltlbauer Weg 4, D-94036 Passau
+49 851 50477-22 Fax: +49 851 50477-29
http://www.haack-it.de


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