On Mon, Sep 24, 2018 at 11:35 AM Lennart Poettering <lennart@xxxxxxxxxxxxxx> wrote:
On So, 23.09.18 22:48, Kamil Jońca (kjonca@xxxxx) wrote:
> It is something strange with sending mails from systemd system service:
> assume we have service file /etc/systemd/system/mailtest.service:
>
> --8<---------------cut here---------------start------------->8---
> [Unit]
> Description="Test maili"
> [Service]
> #User=kjonca
> NoNewPrivileges=false
> Type=oneshot
> ExecStart=-zsh -c 'echo xxx|mail news'
> ExecStart=-zsh -c 'echo xxx|mutt -F /dev/null -s subject -e \'set copy=no\' kjonca'
> --8<---------------cut here---------------end--------------->8---
>
> When I call
> sudo systemctl start mailtest.service
> Two messages are put in exim queue, but not deliveried immediately.
> Why? What am I missing?
Uh, this looks like something you need to ask the exim community,
systemd can't make exim mail queueing decisions, that's entirely
internal to exim.
One question though: are you sure you have started the exim service
properly beforehand? I am pretty sure exim won't process the mail
queue if it's not running...
exim's a bit oldschool, and whenever you pipe a message to 'sendmail', it immediately forks a worker to deliver the message synchronously, regardless of the main daemon running.
(I think this behavior is slightly ugly. It can be disabled by setting 'queue_only=yes', but... it's probably necessary because the main daemon only processes its queue every x minutes and won't notice queued messages for a while.)
Mantas Mikulėnas
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