Only PGP encrypted emails are getting detected, not attachments. How to set up policy to detect pgp encrypted attachments.
Relevant versions: 7.x and up
Vontu includes a ready-made policy template for PGP v.7 encrypted data. To set up this policy:
Vontu does not recognize a PGP v.8 attachment by signature, but can recognize it by extension. To set up a policy to accomplish this, follow these steps: