Michal,

Question,

I have been trying to send you email for a couple of weeks, have you gotten
any of the messages?

Shawn 

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Michal Altair Valasek
Sent: Wednesday, August 27, 2003 11:46 AM
To: [EMAIL PROTECTED]
Subject: [xmail] Re: AW: Re: How to reject message in SMTP transaction


Hello,

|One thing overlooked is, viruses are not sent by properly=20 designed 
|MTA'a or MUA's, they are a basic SMTP engine designed to send, it will 
|send again regardless of error received.  If your AV filter knows to 
|simply discard infected messages from forging viruses, or all viruses, 
|most people ignore infection notifications, or have no clue what they 
|are being told (they already don't know how to install and maintain an 
|AV program, much less react to an infection).

The problem is that I'm not writing antivirus, but content filter.
Therefore, I'll reject all "*.exe" (etc.), withount even trying to = examine
their content. Therefore, I can't simply blackhole the mail, withount = any
notice.

If the message is sent by virus, SMTP error is even better -- the virus =
SMTP engine would not try to react to error, okay. When I'll send new error
message, It will reach the forged sender of message.

-- Altair

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