Comment 1 for bug 1611565

Similar problem. Works under 14.04 not under 16.04.

>>16.04:

/etc/dovecot/conf.d/10-logging.conf:

log_path = syslog
syslog_facility = local5
auth_verbose = yes

/etc/rsyslog.d/dovecot.conf :

local5.*;local5.!err -/var/log/dovecot.log
local5.debug -/var/log/dovecot-debug.log
local5.info,local5.notice;local5.!warn;local5.!err;local5.!crit;local5.!alert;local5.!panic -/var/log/dovecot-info.log
local5.warn -/var/log/dovecot-errors.log

$ sudo doveadm log find

Debug: /var/log/dovecot-info.log
Info: /var/log/dovecot-info.log
Warning: /var/log/dovecot.log
Error: /var/log/dovecot.log
Fatal: /var/log/dovecot.log

>> 14.04 (using same configs above):

$ sudo doveadm log find

Looking for log files from /var/log
Debug: /var/log/dovecot-debug.log
Debug: /var/log/dovecot.log
Info: /var/log/dovecot-info.log
Info: /var/log/dovecot-debug.log
Info: /var/log/dovecot.log
Warning: /var/log/dovecot-debug.log
Warning: /var/log/dovecot-errors.log
Warning: /var/log/dovecot.log
Error: /var/log/dovecot-debug.log
Error: /var/log/dovecot-errors.log
Fatal: /var/log/dovecot-debug.log
Fatal: /var/log/dovecot-errors.log

(Correct)