On 11 Mar 2019, at 13.53, Marcelo Coelho via dovecot <dovecot@dovecot.org> wrote: > > Hi everyone! > > I’m using dovecot 2.3.5. submission-login is crashing many times in a day: > > Here is a sample error message: > > dovecot: submission-login: Fatal: master: service(submission-login): child > 34247 killed with signal 11 (core not dumped - > https://dovecot.org/bugreport.html#coredumps - set service submission-login { > drop_priv_before_exec=yes }) > > After I added drop_priv_before_exec, I got these error messages:
If you're using Linux, you could alternatively: sysctl -w fs.suid_dumpable=2 > submission-login: Error: master-service: cannot get filters: > net_connect_unix(/var/run/dovecot/config) failed: Permission denied > dovecot: master: Error: service(submission-login): command startup failed, > throttling for 2 secs This could be avoided with adding to dovecot.conf: service config { unix_listener config { mode = 0666 } }