Edit the terms to exclude whatever you desire excluded. Include this at a minimum: virus-quarantine|spam|galsync|ham.

Copy the results of:

su - zimbra
zmprov -l gaa | grep -v -E 'virus-quarantine|spam|galsync|ham|smtpuser|support|admin' | sort

Then, in Zimbra Admin, create or edit a Distribution List, paste the copied addresses, click add then click save.