Whitelist of amavisd

Hello all,
I was searching around and I found general items about implementing whitelists for spam... but does anyone know how to implement a whitelist for amavisd quarantined messages? I have payroll emails getting quarantined for "Heuristics.Encrypted.PDF". I need to get these through and this just started with the latest upgrade to 6.0.16...

I was thinking of hacking on the amavisd config file, but I am not sure if/how this gets overwritten by zimbra's config tools.

Any help is appreciated.

Thanks!
-Cheers, Peter.

Ok...

So there doesn't seem to be a separate whitelist... But the solution for my problem was fairly simple:

In AdminUI under 'Configuration' -> 'Global Settings' -> 'AS/AV'
+ Uncheck 'Block encrypted archives'
+ Click Save


done.
- Cheers, Peter.