Disabling Zimbra's AntiSpam, Amavis and AntiVirus filtering
Check whether antispam and antivirus service is enabled currently on server using the given command zmprov -l gs <mail.example.com> | egrep -i 'serviceen|servicein' The above command will list all the services which are currently installed and enabled on the server. Disable the antivirus and antispam services using the given commands zmprov -l ms <mail.example.com> -zimbraServiceEnabled antispam zmprov -l ms <mail.example.com> -zimbraServiceEnabled amavis zmprov -l ms <mail.example.com> -zimbraServiceEnabled antivirus Comment the following line in the file /opt/zimbra/postfix/conf/main.cf content_filter = smtp-amavis:[127.0.0.1]:10024 Restart services on server zmcontrol restart Confirm that the antispam and antivirus services are disabled with the given command zmprov -l gs <mail.example.com> | egrep -i 'serviceen|servicein' zmcontrol status