The encrypted file rule in the exceptions section of the Symantec Mail Security for Microsoft Exchange console is set to quarantine, yet password protected Microsoft Office documents (.docx, .xlsx, .pptx) are allowed through and no action is taken against them.
In Symantec Mail Security for Microsoft Exchange 7.5.5 and earlier, password protected office files are not treated as encrypted by default. SMSMSE 7.5.6 and later treat encrypted office documents as encrypted by default. This behavior can be changed if desired in both cases.
To enable the encrypted file rule for password protected office files in SMSMSE 7.5.5 and earlier:
To disable the encrypted file rule for password protected office files in SMSMSE 7.5.6 and later: