PROVREG list reconfiguration.

Folks,

As the despicable spam morons have started to dive into the Received:
headers to filter out recipient addresses, Majordomo's trick of
"re-sending" to an "unknown" address doesn't work any more. I've tried
to figure out a clean way to make sendmail accept messages to a
certain address only if the client is localhost, but I ended up
"improving" sendmail.cf with a local hack - a hobby that I left behind
many years ago. I will try to convince the Sendmail ppl to accept a
patch for future releases.

This new hack should prevent spammers from bypassing Majordomo
processing, by going for the explosion list directly. It has no means,
however, to know wether a sender address is forged, or not, so the
recent Scott Hollenbeck impersonation (sorry to see that, Scott) thing
is still possible, using a name of any list member. I have no cure for
that, though, except for complete manual list moderation - the work
load of which I dread.

If you see any problems (this is untested software), let me know in
a private mail ASAP.

				Best regards,
				  /Liman
                                  Provreg mail host admin.
#----------------------------------------------------------------------
# There are 10 kinds of people in the world. Those who understand
# binary numbers, and those who don't.
#----------------------------------------------------------------------
# Lars-Johan Liman, M.Sc.	! E-mail: [email protected]
# Senior Systems Specialist     ! HTTP  : //www.autonomica.se/
# Autonomica AB, Stockholm 	! Voice : +46 8 - 615 85 72
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