Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!cse!texas!ylee
From: ylee@csl.dl.nec.com (Ying-Da Lee)
Newsgroups: comp.mail.sendmail
Subject: SunOS4.1.1 sendmail.mx's actual ruleset sequence
Message-ID: <1991May8.231130.25587@csl.dl.nec.com>
Date: 8 May 91 23:11:30 GMT
Organization: NEC America, C & C Software Development Lab
Lines: 37

After getting some completely unexpected results from sendmail
(sendmail.mx distributed with SunOS4.1.1), I got a little
suspicious and put in a rule at the beginning of each ruleset
to leave an identifying mark in the address each time that
ruleset is applied.  I then sent a message from the machine
with the altered sendmail.cf to another machine in our lab and
checked the log on the receiving machine.  This is what the
log shows:

May  8 16:24:04 florida sendmail[29565]: AA29565: message-id=<9105082123.AA23760@texas.csl.dl.nec.com>
May  8 16:24:04 florida sendmail[29565]: AA29565: from=<4.12.1.3.4.1.3.ylee>, size=296, class=0
May  8 16:24:06 florida sendmail[29567]: AA29565: to=<4.22.2.3.4.22.2.0.3.ylee@csl.dl.nec.com>, delay=00:00:02, stat=User unknown

This would indicate that the sequence of rulesets applied
at the sending machin are

3,1,4,3,1,12,4 for the sender, and
3,0,2,22,4,3,2,22,4 for the recipient,

where 12 and 22 are the mailer-specific sender and recipient
rulsets respectively.

The sendmail.cf is my own, but that shouldn't matter as
we are only concerned with the predefined flow of well-known
rulsets, none of them are invoked indirectly through another
in the example cited above.

I must say I am very much surprised by this finding.  Can anybody
confirm/dispute/explain this?  Do other brands of sendmail behave
the same way?


	Ying-Da Lee			(214)518-3490
	C&C Software Development Lab
	NEC America			(214)518-3990 (FAX)
	ylee@csl.dl.nec.com
	uunet!necbsd!ylee