pe 2. helmik. 2024 klo 8.30 Alexandre Detiste
(alexandre.deti...@gmail.com) kirjoitti:
>
> Le jeu. 1 févr. 2024 à 09:11, Martin-Éric Racine
> <martin-eric.rac...@iki.fi> a écrit :
> > > 1)
> > >
> > > MAILFROM= is supported for a long time, is it enough ?
> > >
> > > v1.5.18 : 2020-12-26
> >
> > Thanks. Good to know. It's not documented in the crontab(5) man page.
>
> I added it now.
> It matches cronie alternative implementation roughly at the same time
> https://github.com/cronie-crond/cronie/commit/6181605fafe6aaedc0c19a8bdc85a335403b42d8
Cheers!
> > Also, can this variable be configured in a file that is dropped into
> > some directory, to avoid editing the global /etc/crontab? e.g.
> > /etc/crontab.d/ or something similar?
>
> /etc/crontab _is_ the main config file which other jobs
> (like in /etc/cron.{d,hourly,daily,...}/ will inherit mailing settings from.
> ("std::optional<std::string> fallback_mailto;" in code)
>
> /etc/sysconfig/crond & /etc/default/PACKAGE are old Redhat & Debian
> things, mostly deprecated by systemd config drop-ins.
A systemd drop-in would work too. It just needs to be documented.
Which file? Which configuration key? Just as long as there's somewhere
I can drop a file to configure the MAILFROM on all my hosts, I'm good
to go.
> Maybe you'd want to read from /etc/aliases ?
> I think this one is only for receiving email, not sending.
>
> > > 2) _cron-failure should had been (re-)created by systemd-sysusers:
> >
> > helmi 01 06:20:08 p8h61 nullmailer-send[1286]: From:
> > <_cron-fail...@iki.fi> to: <martin-eric.rac...@iki.fi>
> >
> > _cron-failure does not exist as a user on iki.fi (a public e-mail
> > account e.g. gmail.com, hotmail.com), and therefore bounces.
>
> _cron-failure is a technical user, it should never leaks into e-mail
> envelopes.
> I'm using nullmailer myself but I can't reproduce it.
It does if delivery of the cron job report fails.
Martin-Éric
