spf-discuss
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Re: [spf-discuss] Re: nobody @ xyzzy

2006-02-22 13:44:17
On Wed, Feb 22, 2006 at 03:03:45AM -0500 or thereabouts, John Kelly wrote:
On Tue, 21 Feb 2006 23:52:27 -0800, David Mazieres (no direct replies)
<dm-list-spf(_at_)scs(_dot_)stanford(_dot_)edu> wrote:


Here's a perl SPF sendmail milter:

       http://srs-socketmap.info/spf/sendmail-milter-spf.pl


If you don't like perl, I've got a C++ implementation that acts as an
SMTP server wrapper around sendmail here:

       http://www.mailavenger.org/


Thanks for the links, David.  I will look and see if they are better
options than sid-milter.

Ok.  Here is another pointer to milters to look at.
http://www.snertsoft.com/solutions.php

Suggested ones in order:
http://www.snertsoft.com/sendmail/milter-gris/     Greylisting   Free
http://www.snertsoft.com/sendmail/milter-spiff/    SPF           Free
http://www.snertsoft.com/sendmail/milter-sender/   CBV           Pay

The others have their uses as well.  It it is all a matter of tuning
your system to your needs.

The greylisting will kill 60% of the spam and 98% of the inbound viruses.
It is the cheapest as far as processing time to run.  Then SPF gets the 
left overs and kills about 1%.  The milter-sender then kills off another
10%.  It is the most expensive in processing time, so you run it last.
I run my own home brew of the milter-sender and milter-spiff, but have 
worked with the author and watched his development.  I highly recommend
his software. 

The hardest part to installing his software is that "In order to support 
B/W lists milter-* requires Berkeley DB 3 or better."  So, sendmail and 
makemap have to be rebuilt with a newer Berkeley DB than the default 
of 1.85.  He has full instructions, so it is not that bad.

-Mike Elliott

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