>>
Of course, I probably am wrong about part, and possibly all, of this.
>>

That is the funniest thing I heard all week.. Thanks for the SMILE.. 

Thanks,
  Todd Routhier
  Lightwave Technologies, LLC.
 
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-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of mikea
Sent: Thursday, October 09, 2003 10:20 AM
To: [EMAIL PROTECTED]
Subject: Re: [SAtalk] Is there a way to reject a message before it arrives?

On Thu, Oct 09, 2003 at 11:56:29AM -0300, Fabiano Bonin wrote:
> I am using SpamAssassin sice yesterday and i put it in production today,
> site wide.
> It's amazing.
> It's filtering 95% on my daily messages, and all blocked messages are
> really spams.
> 
> BUT, in my particular point of view, spam generates 2 big problems:
> 
> 1 - Lots of crap in our mailboxes
> 2 - Lots of internet traffic
> 
> Today, SpamAssassin is solving problem number 1 greatly, but problem
> number 2 is unsolved, since i will continue to receive all this crap all
> day (i just will not see it), and the internet traffix will continue
> suffering.
> 
> If there was a way to reject the spam in the mail server (returning the
> rejection to the sender), maybe the spammers will remove our addresses
> from its lists, and the traffic will decrease.
> 
> Is this step possible? If yes, where can i find more documentation?

The RFC does permit a REJECT (or equivalent) in the DATA phase of the
SMTP session, IIRC. That lets you kill the session as soon as the 
filter (probably a milter, to be able to do this) sees something that
matches some rejection criterion. Getting the sender's machine to 
stop sending, just because you send it a REJECT, may be harder. Lots
of spam-senders are b0rk3n and don't fully implement SMTP session
controls. If you can get your mailer to actually send a packet with
the RESET bit set, that could help. 

Of course, I probably am wrong about part, and possibly all, of this.

-- 
Mike Andrews
[EMAIL PROTECTED]
Tired old sysadmin 


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