Where do I find the log files?

[wulfsystems]

Maybe bad question, but are there log files like for postfix "mail.log"?

[foxcpp]

Log output is written to stderr by default. If you run maddy via systemd unit the log is written to the system journal and can be viewed using journalctl (e.g. journalctl -u maddy). If you run it via some other method and stderr is not recorded - well, you have no log. You can add log directive to the config to enable logging to syslog or to a file.

e.g.

$(local_domain) = ...

log syslog # send log to system's syslog daemon
log /var/log/maddy/mail.log # write to a file directly