Philipp wrote: > Hi Simon > > [2024-03-05 10:49] Simon Hoffmann <open...@list.simonhoffmann.net> > > in my virtual users file, I have specified an external script additionally > > to > > delivery to mailboxes. > > > > > > emerge...@domain.tld user1,user2,|/etc/smtpd/send_sms.sh > > > > Local delivery to the mailboxes works fine. > > The script itself is called as well as I do receive the SMS message. > > > > However, OpenSMTPd says "MDA exited prematurely" after calling the script, > > thus > > leading to a TEMPFAIL and OpenSMTPd trying again periodically. > > This means your script exited while OpenSMTPd still has (parts of) the > mail in the output buffer.
aha! I thought so as well, but I had a brainfart and set "sleep 10" at the
beginning
of the script, which still (obviously) does not solve the issue.
>
> > [...]
> >
> > The send_sms.sh script consists of a static curl call at the moment, that
> > performs a
> > HTTP Get call to the SMS Gateway with the static text "new emergency mail
> > received".
> > I am not yet parsing sender/subject etc.
>
> I would guess that you don't read stdin at all.
No, I do not. The script is literally
#!/bin/bash
out=`curl https:/.......`
if [ $out = "OK" ]
then
exit 0
else
exit 1
fi
>
> > Sadly, I could find nothing on the man pages as to which exit codes
> > OpenSMTPd expects
> > from an mda script. Additionally, based on the documentation available, I
> > am not sure
> > if OpenSMTPd just pipes the whole message into stdin or if OpenSMTPd
> > expects some
> > form of "smtp communication" (MAIL FROM + response, RCPT TO + response,
> > ....) and
> > thus comlains that my script exits prematurely because I have not
> > implemented
> > that.
>
> smtpd pipes the mail to stdin and expect your script to read it.
makes sense when you think about it :)
>
> > So, long story short: how shall I modify my script so that OpenSMTPd
> > recognises that
> > the SMS Gateway received the call and has queued the SMS?
>
> A simple line "cat - > /dev/null" should fix it.
*insert lightbulb here* :)
All my Testmails have worked before (probably because they were just a few
lines of
text). I can later try to find the emergency Mail from
earlier today and insert it into the queue again. Otherwise I'll just wait for
the
next monitoring alert :)
Thanks!
Cheers,
Simon
>
> Philipp
>
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