On Wed, Jun 16, 2021 at 10:43 AM Lennart Poettering <[email protected]> wrote:
> On Di, 15.06.21 02:03, Kenneth Porter ([email protected]) wrote: > > > What happens if I list multiple services in a Wants= and After= clause > that > > are mutually exclusive (eg. sendmail/postfix/exim? How can I say "This > unit > > needs to send mail" without knowing which is enabled? > > What does "needs to send mail" even mean? That /usr/sbin/sendmail can > be called to queue a message? That you can talk to localhost:25? > > A well behaving MTA actually make /usr/sbin/sendmail work without the > main mail daemon to be up. The mail is then only enqueued, but not > dispatched, but that'll be done once the service is fully up. > Hmm, I was going to post the same at first, but it doesn't really work in reverse -- if you want to send mail on shutdown and if the goal of After=postfix is "run my ExecStop before postfix gets stopped", then ability to queue doesn't help all that much. -- Mantas Mikulėnas
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