@anatoli other two commands didn’t give any error.
@msaladna output from the command
[root@webserver ~]# grep dovecot /var/log/maillog | tail -n 20
Mar 10 12:38:49 webserver dovecot[12119]: config: Warning: NOTE: You can get a n ew clean config file with: doveconf -Pn > dovecot-new.conf
Mar 10 12:38:49 webserver dovecot[12119]: config: Warning: Obsolete setting in / etc/dovecot/conf.d/apnscp.conf:29: ssl_protocols has been replaced by ssl_min_pr otocol
Mar 10 12:40:50 webserver dovecot[12119]: imap-login: Disconnected: Aborted logi n by logging out (no auth attempts in 0 secs): user=<>, rip=127.0.0.1, lip=127.0 .0.1, session=<LMUwZOLZUMN/AAAB>
Mar 10 12:42:50 webserver dovecot[12119]: imap-login: Disconnected: Aborted logi n by logging out (no auth attempts in 0 secs): user=<>, rip=127.0.0.1, lip=127.0 .0.1, session=<Wapba+LZUMN/AAAB>
Mar 10 12:44:50 webserver dovecot[12119]: imap-login: Disconnected: Aborted logi n by logging out (no auth attempts in 0 secs): user=<>, rip=127.0.0.1, lip=127.0 .0.1, session=<IIeIcuLZ5Nl/AAAB>
Mar 10 12:46:51 webserver dovecot[12119]: imap-login: Disconnected: Aborted logi n by logging out (no auth attempts in 0 secs): user=<>, rip=127.0.0.1, lip=127.0 .0.1, session=<Flm3eeLZ7NB/AAAB>
Mar 10 12:48:51 webserver dovecot[12119]: imap-login: Disconnected: Aborted logi n by logging out (no auth attempts in 0 secs): user=<>, rip=127.0.0.1, lip=127.0 .0.1, session=<x83lgOLZUMN/AAAB>
Mar 10 12:50:52 webserver dovecot[12119]: imap-login: Disconnected: Aborted logi n by logging out (no auth attempts in 0 secs): user=<>, rip=127.0.0.1, lip=127.0 .0.1, session=<QSoQiOLZUMN/AAAB>
Mar 10 12:52:52 webserver dovecot[12119]: imap-login: Disconnected: Aborted logi n by logging out (no auth attempts in 0 secs): user=<>, rip=127.0.0.1, lip=127.0 .0.1, session=<R186j+LZUMN/AAAB>
Mar 10 12:54:52 webserver dovecot[12119]: imap-login: Disconnected: Aborted logi n by logging out (no auth attempts in 0 secs): user=<>, rip=127.0.0.1, lip=127.0 .0.1, session=<C1tnluLZUMN/AAAB>
Mar 10 12:56:53 webserver dovecot[12119]: imap-login: Disconnected: Aborted logi n by logging out (no auth attempts in 0 secs): user=<>, rip=127.0.0.1, lip=127.0 .0.1, session=<KnOSneLZUMN/AAAB>
Mar 10 12:58:53 webserver dovecot[12119]: imap-login: Disconnected: Aborted logi n by logging out (no auth attempts in 0 secs): user=<>, rip=127.0.0.1, lip=127.0 .0.1, session=<ZdW8pOLZUMN/AAAB>
Mar 10 12:58:58 webserver dovecot[12119]: imap-login: Disconnected: Aborted logi n by logging out (no auth attempts in 0 secs): user=<>, rip=127.0.0.1, lip=127.0 .0.1, session=<TM0SpeLZUMN/AAAB>
Mar 10 13:00:59 webserver dovecot[12119]: imap-login: Disconnected: Aborted logi n by logging out (no auth attempts in 0 secs): user=<>, rip=127.0.0.1, lip=127.0 .0.1, session=<ifw8rOLZUMN/AAAB>
Mar 10 13:02:59 webserver dovecot[12119]: imap-login: Disconnected: Aborted logi n by logging out (no auth attempts in 0 secs): user=<>, rip=127.0.0.1, lip=127.0 .0.1, session=<i5Zps+LZUMN/AAAB>
Mar 10 13:04:59 webserver dovecot[12119]: imap-login: Disconnected: Aborted logi n by logging out (no auth attempts in 0 secs): user=<>, rip=127.0.0.1, lip=127.0 .0.1, session=<B/qWuuLZUMN/AAAB>
Mar 10 13:07:00 webserver dovecot[12119]: imap-login: Disconnected: Aborted logi n by logging out (no auth attempts in 0 secs): user=<>, rip=127.0.0.1, lip=127.0 .0.1, session=<yKrBweLZUMN/AAAB>
Mar 10 13:08:44 webserver dovecot[12119]: log(12119): Warning: Killed with signa l 15 (by pid=1 uid=0 code=kill)
Mar 10 13:08:44 webserver dovecot[12119]: log(12119): Warning: Shutting down log ging for 'config: ’ with 2 clients
Mar 10 13:08:44 webserver dovecot[12116]: master: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)