topic Re: Sendmail spam protection in Operating System - Linux

Sendmail spam protection

Varun_3 — Wed, 04 Aug 2004 11:39:37 GMT

How can I configure Sendmail to protect myself from spam mails...

Please give me some reference

Re: Sendmail spam protection

Steven E. Protter — Wed, 04 Aug 2004 16:52:28 GMT

Broad topic.

Start at http://www.sendmai.org

There are many features you can implement to stop spam.

I've also created my own add in set that allows me to tranfer spam mail and the source ip to a ban list that requests a storage fee. Its not a commerical product, but once you start stopping spam, I can help you customize.

Also:

http://www.spamassasin.org

This Linux add in will let your indvidual users or system stop spam. I don't know if it keeps it out of the logs or /var/mail. Probably not.

SEP

Re: Sendmail spam protection

Vitaly Karasik_1 — Thu, 05 Aug 2004 02:25:31 GMT

1) You can start from realtime blacklists:

http://www.netadmintools.com/art100.html
http://www.spam-blockers.com/SPAM-blacklists.htm

Such lists provide realtime list of openrelays and other spam sources.

2) there are several free tools, for example spamassain, mentioned by Steven. these tools analyze email's body.

3) there are several commercial solutions, for example MailFrontier.

NB : all antispam technicies sometimes mark "good" emails as "spam" (false-positive), advanced solutions allow to user to check emails marked as "spam", and "unjunk" them.

Rgds,
Vitaly

Re: Sendmail spam protection

Phil Barker — Fri, 03 Sep 2004 18:46:34 GMT

Hello Varun,
Why not have a look at MailScanner? It works very nicely and includes spamassassin. If you also use clamav you'll have a very nice system for email!
Cheers,
Phil