Antivirus
So antivirus is not running.
It might be because its downloading the antivirus database, so give it 1 min. If thats not it, try this:
[zimbra@mail root]$ zmcontrol status Host mail.domain.com antispam Running antivirus Stopped zmclamdctl is not running ldap Running logger Running mailbox Running mta Running snmp Running spell Running
Here are your options to control antivurisfrom the CLI:
[zimbra@mail root]$ zmclamdctl Usage: /opt/zimbra/bin/zmclamdctl start|stop|kill|restart|status