It seems that after logrotate, zimbra.log is not filled anymore (syslog stopped logging to zimbra.log).

-rw-r--r-- 1 zimbra zimbra 0 2010-10-22 06:25 zimbra.log
-rw-r--r-- 1 syslog adm 1017563 2010-10-22 06:24 zimbra.log.1.gz
-rw-r--r-- 1 syslog adm 1049984 2010-10-21 06:25 zimbra.log.2.gz
-rw-r--r-- 1 syslog adm 44032 2010-10-20 06:24 zimbra.log.3.gz
-rw-r--r-- 1 zimbra zimbra 2641 2010-10-19 06:24 zimbra.log.4.gz


After restarting syslog, it works again
# /etc/init.d/rsyslog restart

Is this a bug and should I report it?