I've just upgraded my (local-only) zimbra installation from 9.0.0 to 10.0.0 and just after the upgrade mailboxd and a few other services wouldn't start: [root@zimbra01 ~]# su -ls /usr/bin/bash -c 'zmcontrol status' zimbra load average: 0.91 1.81 1.88 Host zimbra01.archyslife.lan amavis Running antispam Running antivirus Running dnscache Running ldap Running logger Running mailbox Stopped zmmailboxdctl is not running. memcached Running mta Running opendkim Running proxy Running service webapp Stopped