[NTLUG:Discuss] Linux Mail servers

Wed Feb 27 02:25:01 CST 2002

Call me insane, but I love sendmail.  I am so proud of the Beast.

Of late I have setup spam filters, using nothing but the rewrite rules.
One of my rules, call it Subject, loads an ASCII file of text (spam)
strings to the string pool and uses it to filter.  Would you believe
that I was able to load 25000 strings to the pool before even lowly
64MegRAM servers showed any sign of stress?  Add to that some
10K domains/addresses in the access database and other databases and
rules I've set up, inspecting every line in the header for spammer
signatures, and it's pretty incredible what sendmail can do when 
nicely asked.

Since 00:00 PST this day, on our main mail server:

Wed Feb 27 00:17:05 PST 2002:
Dom discarded - 260  Subject discarded - 131  Banned discarded - 0
To discarded - 45 Returns discarded - 7 Reply-To discarded - 17
X-mailer discarded - 8 Message-Id discarded - 18 X-UIDI discarded - 0
Received discarded - 2
Tot recd - 584  Tot discarded - 488
Tot sent -     96  Percent spam = 0.84 

That's an incredible amount of spam (and I'm not getting it all, either),
but sendmail is a pretty incredible program that's up to the task
of getting rid of the trash before it bothers our customers.  I'd
challenge any other SMTP agent to match the power and versatility of
sendmail.

Rewrite rules, BTW, are only tough if you believe everything you hear.
Spend a little bit of time learning them and they're not hard at all, and
what you can do with them makes every bit of the effort taken to learn
them worthwhile.

Annette
> From discuss-admin at ntlug.org Tue Feb 26 18:36 CST 2002
> Subject: Re: [NTLUG:Discuss] Linux Mail servers
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> On Tue, 2002-02-26 at 17:24, Douglas King wrote:
> > Anyone have any recommendations for a mail server?  I need the ability to 
> > provide POP3, SMTP, and web mail on MULTIPLE domains.  Any help would be 
> > greatly appreciated.
> 
> a friend of mine who makes a living at running *LARGE* mail farms says
> that sendmail is to confusing and kludgey.  He recommends exim.
> http://www.exim.org
> 
> I personally still run Sendmail as I have not had time to upgrade, but I
> agree about the confusing and kludgey part.  It is worth checking out.
> 
> > 
> > 
> > _______________________________________________
> > http://www.ntlug.org/mailman/listinfo/discuss
> > 
> -- 
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