On Thu, 2 Oct 2003 11:30:50 -0700 (PDT) [EMAIL PROTECTED] wrote:

> Hey all,
> I want to be able to setup an email 'bounce' from my server. 

If you just want to stop spam and other undesirable junk, I find postfix
does an admirable job.  For those obstinate sites that won't quit, they
get blocked by iptables..

> I want it on the server because I don't even want it to hit my
> mailbox.

My postfix is setup to report delivery failures -- because that's the way
I prefer it; but lately, even those have dropped to none in the past 48
hours or so...  even the Mdk list server that was causing me (you too?)
grief is finally quiet.

> I'm not sure if this is procmail or spamassassin or some other
> program.  I've read some on procmail, but that seems to work on an
> individual basis.  

Never bothered with those.

>                   I want to be able to filter some domains
> globally and maybe still have the custom message.  I like the
> bounce idea because if it's spam, I'm hoping that I can spam them
> back :)

Not that simple...  the best approach is to NOT bounce generally --
otherwise you just confirm your e-mal address for the offenders. 
Sometimes, there is a domain that goes nuts attempting to deliver mail
from non-rDNS servers (refused by my postfix) -- in one case, I researched
the domain, and warned the owner that I would start bouncing the delivery
failures to him as the domain contact...  got "it's not me" denials; but
when the bounces arrived in his mailbox, it was amazing how quickly the
attempts stopped....  we exchanged a couple of more mails where he still
claimed it wasn't him -- I replied that while I couldn't conclusively say
the attempts were from his domain, the fact that they stopped immediately
(and haven't resumed) was only circumstantial evidence, yet good enough.. 
:^)  Oh... there is the odd "test" every 1-2 months; but my bounce logic
is permanent for this one...  

Some of my efforts are documented at http://pfortin.com/Linux/PostFix/

I should point out that I only use postfix and sylpheed-claws.  Postfix
handles the rejections, and sylpheed-claws handles the bounces and only as
I direct in the filtering rules.  Mdk was the recipient of my latest
volley -- this finally got their attention and while nothing was "fixed",
it still stopped after Mdk contacted their ISP about lost-oasis.net
showing up as the hostname for that server.

HTH

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Go to http://www.mandrakestore.com

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