if mailbox stops again, try running this to find out exactly what part isn't running (though you may need to post the output here for interpretation):
sh -x ~/bin/zmmailboxctl status
a quick guess is that tomcat died. are there any clues in stacktraces or catalina.outs from whenever mailbox became stopped? check in /opt/zimbra/tomcat/logs/
you can get see when mailbox stopped by checking in /var/log/zimbra.log. the zmcontrol status is logged there pretty frequently |