How do fix a good solution against spam..

[Martin Jessa]

Hi.

To begin with this email should rather go to the ISP list.

My advice is to run Exim on your email gateway.
I've tested and ran postfix, messagewall, qmail+qmailscanner, mailscanner and exim is just the best stuff ever.
Not only it's way faster than perl based messagewall, amavisd and mailscanner etc but it also has neat stuff like making connections back to the sender's MX checking for validity of the sender's email.
Since most of the spam is sent with forged reply to address this is one heck of a anti-spam solution.
Aditionally you should use RBLs to check your emails, and regular expressions to filter out certain attachement types.
Spamassassin can use Bayesian classification to help you perform scanning more efficiently.
Search for razor in the ports too.
There are many howtos around about that.

I personally run Exim on my email router/gw and postfix on my "real" email server. 


Cheers, 
YazzY


On Thu, 13 May 2004 03:00:12 +0200 (CEST)
"Jesper Wallin" <z3l3zt at hackunite.net> wrote:

> Heya folks
> 
> First of all, sorry if this isn't the correct list, but yet, I think spam is a kind of
> network attack and should be treated as a security issue.. I run a working mail server
> using Postfix, MySQL, Courier-IMAP, SpamAssassin and ClamAV (amavisd-new) ..
> 
> I've checked the configuration file for SpamAssassin, but yet I havn't find any good
> solution for spam.. Sure, spam will always be a problem and I guess it's impossible to
> filter 100% of all spam..
> 
> Currently, I've made a filter in my mail client which move all mails with a header
> containing "Spam-Level: ***" to a "spam" directory.. The last 2 months, spam and spam
> only has been triggered/filtered.. so I think it's quite useful.. yet, it does send the
> mail.. if it's triggered spam, why does it even send it to the mailbox instead of just
> blocking it? I assume that's because of a bad configuration made by myself..
> 
> Also, a lot of mail which is spam is not triggered as spam, is it possible to improve
> spamassassin to filter more mails? Like, the way a antivirus program works, (have ids
> for each virus), does spamassassin has any "spam ids" or something similar to make it
> filter new mails?
> 
> Once again, sorry if this mail has been sent to the wrong list, and sorry for asking
> alot of questions which might already been documented.
> 
> 
> Regards,
> Jesper Wallin
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