From stuart at bmsi.com  Thu Feb  9 17:29:42 2006
From: stuart at bmsi.com (Stuart D. Gathman)
Date: Thu, 9 Feb 2006 17:29:42 -0500 (EST)
Subject: [Pymilter] Capacity data point
Message-ID: <Pine.LNX.4.44.0602091722020.690-100000@bmsred.bmsi.com>

I installed pymilter-0.8.5 to stop a severe spam problem.  The gateway was
a 400Mhz Celeron with 256Meg ram.  Running at 100% capacity, the machine
could filter about 120000 messages/day checking SPF and other 
items (e.g. hello_blacklist), delivering about 100 mostly legit messages/day.
The spam was coming in a rate of 2.5Million / day (as tracked by iptables).
Although the spammers give up easier, the resulting backlog was resulting in 6
- 12 hour delays for incoming legitimate mail.

A faster server would handle the load, but we opted to use spamsoap.com
to prefilter.

-- 
	      Stuart D. Gathman <stuart at bmsi.com>
    Business Management Systems Inc.  Phone: 703 591-0911 Fax: 703 591-6154
"Confutatis maledictis, flammis acribus addictis" - background song for
a Microsoft sponsored "Where do you want to go from here?" commercial.



From stuart at bmsi.com  Mon Feb 13 17:48:41 2006
From: stuart at bmsi.com (Stuart D. Gathman)
Date: Mon, 13 Feb 2006 17:48:41 -0500 (EST)
Subject: [Pymilter] Double hello and macros
Message-ID: <Pine.LNX.4.44.0602131744500.15926-100000@bmsred.bmsi.com>

Just noticed this: when STARTTLS is used, milters (including pymilter) will
have their hello callback invoked twice.  I haven't checked what
macros are available for the second hello.

Does anyone have a table of which macros are available in which
milter callbacks for which sendmail versions?  That would be a nice
document to post.

-- 
	      Stuart D. Gathman <stuart at bmsi.com>
    Business Management Systems Inc.  Phone: 703 591-0911 Fax: 703 591-6154
"Confutatis maledictis, flammis acribus addictis" - background song for
a Microsoft sponsored "Where do you want to go from here?" commercial.