Zimbra: enhance antivirus check using VirusTotal.com

Something I always wanted to have in my Zimbra installations is virus check via VirusTotal. My initial idea was to have a Zimlet that would add this feature to the WebUI, a new action for a mail attachment. This solution is good because you won’t likely hit the limits of the free version of VirusTotal, but has the downside that the final user is in charge of doing the check! So an optional feature could allow a sysadmin to force virus check for all attachments. Sadly I never had time to start developing and I’ve never been able to convince anyone of my idea, so it remained a wish.

But then I ran into amavisvt.

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