Password Protected PDFs

[Andrews Carl 448]

I am having a problem allowing password protected PDFs in from an address to an address using a ruleset. The ruleset works great, if I put the lines in the virus.scanning.rules file. I tried the Allow Password-Protected Archives option, but PDFs are not achives and so mailscanner, correctly, ignores that rule. The log file shows "MailScanner [####]: Viruses marked as silent: Password protected file .", so this is a virus setting but I can not find it. Could someone tell me what option I need to point to my ruleset or do I have to use the virus.scanning.rules?

Thanks!

Carl