Re: spam control

[mouss <mouss@ml.netoyen.net>]

Girish Kulkarni a écrit :
> Hi,
> 
> I've been managing my mail with Gmail for about three years now.  The
> primary reason for sticking to Gmail is their spam control.
> 
> I now want to try moving back to the old mail spool on my Debian box
> and start managing mail myself.  I'm curious to know what spam control
> techniques people on this list currently use.
> 
> How is your experience with the spam control tools already available
> (SpamAssassin, SpanBouncer, Bogofilter)?  Which one is the most
> favoured?  Is Gmail indeed the best option for controlling spam?
> 

if you get mail directly (not relayed via any provider), then there are
controls you can do at smtp time. for example, with postfix:

	reject_invalid_helo_hostname
	reject_non_fqdn_helo_hostname
	reject_rbl_client zen.spamhaus.org

These will block a lot of junk before data is even received. if you
decide to use postfix, you can get help on the postfix-users list. you
can get similar functionality in other MTAs.

for the spam that goes through, spamassassin is effective out of the
box. you can tune it for better results (use sa-update with selected
channels, train Bayes, ... etc). for more infos, the spamassassin-users
list is a good place to ask.

"pure bayesian" filters like bogofilter can be very effective if you
train them correctly. Depending on your mail flow, this may or may not
be easy. you can get help on the bogofilter list.