On Mon, May 04, 2026 at 05:02:05PM +0200, Jan Claeys wrote: > On Sun, 2026-05-03 at 20:20 +0000, Andy Smith wrote: > > Although I confess I don't really understand why a > > process launched by monit would be directly trying to write to the > > postfix directory as I would have thought it talks to postfix and > > then something from postfix delivers the mail. But since the same > > thing appears to have happened with netdata and other software then I > > think it's got a good chance. > > Typically such applications use /usr/sbin/sendmail to send mail, which > is usually a binary supplied by the MTA you use (Postfix in this case). > > Depending on the implementation & configuration of /usr/sbin/sendmail > it might try to do anything from dropping a file in a specific location > to connecting to an external mail server. > > > The problem might indeed be systemd or AppArmor or similar blocking > sendmail from doing its thing (possibly also because it’s being run > with restrictions set for Monit, which don’t take into account the > specifics of the /usr/sbin/sendmail you are using).
This all doesn't rhyme with the error message given ("read-only file
system"), unless the error message is lying, that is.
Cheers
--
t
signature.asc
Description: PGP signature
