KSpagnol@massey.ac.nz (Ken Spagnolo) (09/06/89)
I am trying to move an email alias database onto our Pyramid OSx4.4
machine. Our addresses are of the form P.K.Dick@massey.ac.nz, which
would map to something like phil@whatever.machine.on.campus. Incoming
mail needs to be readdressed from the alias to the actual account,
while outgoing mail needs to have the From: line rewritten with the
user's alias.
We already have a phone book type database that holds user information,
including the alias. It is queried via a tcp connection to the port
that has the daemon sitting on it. The idea is to have the mail system
(and eventually news) use this existing method to determine what alias
transformations are needed for a piece of mail, and whether or not the
usercode is valid, etc. I intend to write a program to make the queries
as well as edit the mail accordingly.
The question is where do I hook this into the mail system? It would
seem best to do it thru sendmail.cf, but I would need a mechanism to
cause my program to be executed after sendmail got it, but before
recipient resolution is done. So far, there seems to be no way of
calling a program other than the mailer at the end. It looks as though
I may have to call my program sendmail and have it execute the real thing
when it's done.
I'm not a sendmail guru and would appreciate tips from those who are!
We are using sendmail version 5.54, because that's what we have the
source to. The phone book datebase is actually the CSO Nameserver,
given to us by Steven Dorner at the University of Illinios at Urbana-
Champaign. With a bit of hacking, I've got it running in a rudimentary
(for the time being) form. We are quite pleased with the package so
far, as it should solve our email alias problems as well as provide a
new service to our user community.
Thanx.
--
Ken Spagnolo - Systems Programmer, Postmaster, Usenet Administrator, etc...
Computer Centre, Massey University, Palmerston North, New Zealand
K.Spagnolo@massey.ac.nz Phone: +64-63-69099 x8587 New Zealand = GMT+12