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