Procmail battles

[Paul Michael Reilly]

Les Mikesell <lesmikesell at gmail.com> writes:

 > On Sat, 2006-05-13 at 14:48, Paul Michael Reilly wrote:
 > 
 > > LOGFILE=/root/procmail.log
 > > LOGABSTRACT=yes
 > > VERBOSE=1
 > > 
 > > and send mail to "root" then I actually see an abstract appended to
 > > /root/procmail.log which is consistent with the procmail man page in
 > > that it says $HOME/.procmailrc will get processed.  I leaped,
 > > incorrectly it would appear, to the conclusion that $HOME referred to
 > > the mail target.  It must be referring to the User running procmail,
 > > i.e. "root" on a stock Fedora Core system, which makes considerable
 > > sense.  This, I believe, is the crux of my battles.
 > 
 > $HOME is the expansion of the environment variable HOME, which
 > is set to the 6th field of the user's /etc/passwd file entry,
 > i.e. their home directory.  This happens in a straightforward
 > way during logins and is emulated in procmail runs. 
 > 
 > > So that raises the question: how does one configure mail (sendmail or
 > > otherwise) on a stock Fedora Core system so that ~User/.procmailrc
 > > will be processed for all User's on the system?
 > 
 > ~user is expanded in a shell to the same thing as $HOME would be for
 > that user.  Sendmail should, by default, use procmail for everyone
 > which should then process their .procmailrc but it will not trust
 > files where the permissions allow write access by others.

Excellent.  This insight has led to the real culprit: selinux.
Disabling selinux leads to FC4 level behavior so it is a safe bet that
a more stringent FC5 selinux setting is what is ailing me.  Now,
ideally, I should be able to google FC5, selinux and mail and get some
insight.  Not so.  Anyone have a reference where I can learn what
FC5 now expects from sendmail/procmail to make selinux happy?  The
entries in /var/log/messages are not exactly real informative:

May 13 21:22:04 roamer kernel: audit(1147569724.815:39): avc:  denied  { search } for  pid=26417 comm="procmail" name="log" dev=dm-0 ino=4128796 scontext=system_u:system_r:procmail_t:s0 tcontext=system_u:object_r:var_log_t:s0 tclass=dir


-pmr