On Thu, Sep 25, 2003 at 04:44:43PM -0400, Vivek Kumar wrote:
> Hi all,
> 
> We are getting lot of spam mails.. I am using sendmail on debian box and
> trying to load spamassassin software from au.spamassaaain.org. Is there
> anything better I can use or anyone has experienxe with this software ??
> 
> Kindly share your thoughts.. Thanks a lot..
> 
Why not use the debian package of spamassassin and spamc?  For
sendmail I think "milter" versions of things are particularly
appropriate; "apt-cache search" milter shows several anti-virus
options, but no spamassin.

See the many recent threads inspired by the  latest wave of viruses:
look for bomb, MS, swen, virus, spam, mailfilter in the subject.

My crude typology of types of solutions is
* anti-virus (amavis, clamav)
* spam recognition by rules, possibly tuneable by you (basic
spamassin)
* spam recognition by internet shared black lists and such (not sure
if the rules are shared) (razor or pyzor addin to spamassassin)
* spam recognition by Bayesian rules trained on your particular
messages (many)

The latest stuff, swen, is really a virus not spam, so spamassassin
needs a little tweaking to block it (MICROSOFT_EXECUTABLE=5, roughly,
but that's from memory).

Another way of cutting things is where in the process the filter
intervenes:
* on the pop server to cut downloads over phone (mailfilter, manual
 inspection with mutt)
* during reception by your MTA, possibly rejecting the message
 (sa-exim for exim4, though it's not in the main archive and not your
 MTA)
* after reception by MTA
* on the mail client

Some tools like spamassassin can play at several of those levels.

There are many more examples of each kind than I gave.

And of course, the best solution:
* somebody else, like your ISP, does this and you don't have to worry 


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