===Whitelist by Spamassassin===
How-to add E-Mail addresses or domains to Zimbra's Spamassassin whitelists \\
https://wiki.zimbra.com/wiki/King0770-Notes-Whitelist-Spamassassin-MTA
Do this a zimbra user
sudo su - zimbra
touch /opt/zimbra/data/spamassassin/localrules/sauser.cf
Edit sauser.cf file, and add the following (the example includes options for an individual E-mail and a full domain)
vim /opt/zimbra/data/spamassassin/localrules/sauser.cf
Example
whitelist_from jsmith@exampledomain.com
whitelist_from *@exampledomain.com
Restart amavis
zmamavisdctl restart