Date: Tue, 17 Dec 1996 10:53:12 +0100 (GMT-1) From: af@biomath.jussieu.fr (FAUCONNET Alain) To: eblood@cs.unr.edu (Eric Blood) Cc: questions@freebsd.org Subject: Re: Sendmail question Message-ID: <199612170953.KAA09875@garfield.biomath.jussieu.fr> In-Reply-To: <199612170949.BAA16522@godzilla.cs.unr.edu> from Eric Blood at "Dec 17, 96 01:49:58 am"
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Eric Blood wrote / a ecrit:
>
> Two things about sendmail have come up...
>
> The first has to do with changing the sendmail.cf file and changing it
> to write the senders address from whoever@localhost.domain.name to
> whoever@domain.name. I've flipped through the big sendmail book, but
> haven't found an answer.
Tweaking sendmail.cf manually really is black art. Hiding the host
name in the From: header requires adding a rewrite rule in the ruleset
whose number is specified in the S= argument of the smtp mailer
definition (usually). There are just too many different situations to
give you a rule that will work for your case. Here, we use sendmail.cf
automatically generated by a site-wide script. I hand-modified ours
quite a bit though so I have some understanding of how it works...
I would advise to get hold of the latest sendmail source distribution
(version 8.8.4 as of 10 minutes ago, might have changed ;-) and take a
close look at the "cf" subdirectory. Through the use of a couple
parameters file, you can generate sendmail.cf files with the features
and configuration you want. Carefully read the README file,
particularily everything revolving around the "masquerade" feature.
Quoting the README: ``The domain file can also be used to define a
domain name, if needed (using "DD<domain>") and set certain site-wide
features. If all hosts at your site masquerade behind one email name,
you could also use MASQUERADE_AS here.''
> Also, when sendmail is run with the "-f" option, I get a message in
> /var/log/messages:
>Dec 16 23:39:48 wooster sendmail[357]: NOQUEUE: SYSERR(eblood):
>queuename: Cannot create "qfXAA00357" in "/var/spool/mqueue"
>(euid=1000): Permission denied
>A quick fix was to allow everyone
>write permission in the mqueue directory. What is the real fix?
(sorry for the reformating... my editor macros went nuts)
The man page says ``-f can only be used by ``trusted'' users (normally
root, daemon, and network) or if the person you are trying to become
is the same as the person you are.''
This basically means that for a plain user, -f turns off sendmail's
setuid "power" and then it can't write to the spool anymore.
I wonder why emacs would need that. RMAIL doesn't seem to as far as I
can tell from our Emacs setup here.
Check your Emacs mail facility parameters, there must be a way to
discourage it from using -f.
_Alain_
--
Alain FAUCONNET Ingenieur systeme - System Manager AP-HP/SIM
Public Health 91 bld de l'Hopital 75013 PARIS FRANCE
Medical Computing Research Labs Mail: af@biomath.jussieu.fr
Tel: (+33) (0)1-40-77-96-19 Fax: (+33) (0)1-45-86-80-68
I've RTFMed. It says: "Refer to your system administrator"
But... I *am* the system administrator :-]
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