L.S.,
Let me first repeat the problem as originally stated:
> We have eight machines, one of which functions as mailserver (it serves
> the /var/mail directory through NFS) and mailhost (mentioned in the NIS
> hosts map). (It is also the NIS master.)
> The NIS domain (from which sendmail.cf figures out its own domain) is
> ptg.mp.tudelft.nl, the DNS domain is mp.tudelft.nl.
>
> All machines have the subsidiary.cf file as sendmail.cf, even the
> mailhost, because what we want is that all mail not for a local user
> (i.e. everything that has a Fully Qualified Domain Name as address) is
> sent to a mail relay host (not one of our Suns), that takes care of the
> mail domain mp.tudelft.nl (for reply address rewriting and such stuff).
> (The subsidiary machines have as relay host the mailhost, the mailhost
> itself uses an external machine as relay.)
>
> What happens is that the following lines are consistently wrong in
> outgoing mail:
>
> >From user@mailhost date
> Return-path: <user@mailhost>
> From: <user@mailhost> (fullname)
>
> Nowhere is the mail domain mp.tudelft.nl being added to the mailhost
> name (as it should, in my opinion).
> I've looked in the sendmail.cf file, and in each case it is the $g
> macro that is involved. (Not that I know what to do with it :-).
After having a look at the suggested sendmail.8.6.9 distribution, which
also looked to be a daunting task, I decided to jump in at the deep end
and have a closer look at sendmail.cf.
I think I have it configured properly now. The problem of the missing
domain names in some of the header lines, was overcome by using the line
DMddn
in the sendmail.cf on the mailhost (instead of DMether as I previously
did).
The reason for using the subsidiary file on the mailhost as well, was
to have it send all mail addressed to the symbolic mailaddress
lastname@mp.tudelft.nl , to the mail-relay (an external machine where
the address translation is being performed), without having to tweak
the rewriting rules. But as everyone pointed out, using the main.cf is
better (only that file defines the ddn mailer), but the necessary thing
was adapting ruleset 6 to read:
R$*<@$-.$=m>$* $1<@$2.LOCAL>$4
so that only @hostname.$m is recognized as being LOCAL, but not @$m .
Thanks go to the following people for their suggestions and helpful
hints:
Clark Rudder <rudderc@infomail.infonet.com>
Claus Assman <ca@informatik.uni-kiel.de>
Sam C. Nicholson <scion@vanguard.symtec.com>
and especially
Stefan Rauthenberg <rauthenberg@HHI.DE>
Thank you, all of you.
Jan-Willem
-- Jan-Willem de Bruijn Section Applied Geophysics Dept. of Mining and Petroleum Engineering Delft University of Technology
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