On Tue, Dec 31, 2013 at 10:50:46AM +0800, Ed Greshko wrote: > On 12/31/13 10:14, Suvayu Ali wrote: > > On Mon, Dec 30, 2013 at 08:06:37PM -0500, Robert Moskowitz wrote: > >> I can see why the securities boundary issue means that a secure process with > >> elevated privledges has to do the writing to /var/mail, and mailx does not > >> run as such. Thus we need a real MTA for this purpose and choose sendmail > >> or postfix. > > All that is fine, and I follow the reasoning. But saying mailx cannot > > do the job is contradictory to Frank's experience in the original > > thread. I would like to know what is the bit that makes Frank's setup > > work so that I can replicate it on my less powerful machines. > > > > First of all, let me reiterate one thing. "sendmail" does not do > local delivery by itself. It relies on another program to do this. > In the default configuration (sendmail.mc) on Fedora it is defined to > use procmail for local delivery. > Okay, makes sense. > Now, if you (pl) would do a bit of man page reading you'd find in "man crond".... > > -m This option allows you to specify a shell command to use for > sending Cron mail output instead of using sendmail(8) This com‐ > mand must accept a fully formatted mail message (with headers) on > standard input and send it as a mail message to the recipients > specified in the mail headers. Specifying the string off (i.e., > crond -m off) will disable the sending of mail. > > So, you can edit /etc/sysconfig/crond to contain.... > > CRONDARGS=-m/bin/procmail > > systemctl restart crond.service > > Now, the only "problem" is that procmail cannot initially create files in /var/mail. So, to get this to work you'll need to do, as root.... > > touch /var/mail/username > chown username:mail /var/mail/username > > I know this works with procmail but not sure about mailx. You can certainly test.... > > So, you don't need sendmail. procmail will do just fine. Okay I follow, it seems what you propose should work. However cron is not the only thing that sends mail for me. In my post it was just the most frequent example. For example, I want to receive mail from smartd (particularly important!), denyhosts, ddclient, etc. I would then have to setup something like the above for all such use cases. I guess it is simplest to just use an MTA. Thanks for the response though, I understand the system mail system better now. And happy new year, :) -- Suvayu Open source is the future. It sets us free. -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
