log SMTP errors
as reported in https://forum.turris.cz/t/email-notification-debug/14137 it would be nice to have output of SMTP sending errors in syslog, or maybe even visible in reforis in case of notification test
as reported in https://forum.turris.cz/t/email-notification-debug/14137 it would be nice to have output of SMTP sending errors in syslog, or maybe even visible in reforis in case of notification test