syslog logging + 2.3.10 + centos 7

[Matt Bryant]

All,

Running dovecot 2.3.10 on a CentOS 7.x and logging via syslog seems to 
stop when i restart rsyslog process. Reload doesnt get it working again 
only a dovecot restart. Tested this with dovecot 2.2.36 and this did not 
exhibit the same behaviour.

systemctl restart dovecot rsyslog ----- this gets a working state

systemctl restart rsyslog ------------- this restarts syslog other 
processes like exim continue to log but dovecot stops

systemctl reload dovecot -------------- this has no impact logging still 
does not work

systemctl restart dovecot ------------- this fixes the issue.

Are there any changes to the log process between 2.2 and 2.3 that might 
explain this ?

rgds

Matt