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. > [...] > > 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. > 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. > 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. Philipp
