I am evaluating a multi-server install of Zimbra ZCS 7.12 and have everything working fairly well, except for this one annoying issue. If an incoming message is found to have a virus, or has a password encrypted zip attachment, the message is blocked as expected. Note, I have "Block encrypted archives" option enabled, so the message is not delivered to the user's mailbox, exactly the way I want it to work.
However, if the account has the archiving feature enabled, the message is delivered to the user's archive mailbox. This probably wouldn't be much of a problem, except that we plan to present the user with a View Only share of the archive mailbox. I don't want the user to have access to any encrypted zip files, period. I've seen too many viruses being sent in this manner. How do I block delivery of encrypted archives to both mailboxes???
mx1 - MTA, A/V, A/S, Proxy
mx2 - LDAP
mx3 - user mailboxes
mx4 - archive mailboxes