What is PGP Smart Trailer?
If policy is configured to not encrypt email to an external user, PGP Universal Gateway Email can add a PGP Smart Trailer to the end of a message. The Smart Trailer is text that explains the message could have been encrypted if the recipient were a member of the Self-Managing Security Architecture. The Smart Trailer also includes a link to a location on the PGP Universal Gateway Email server where the recipient can choose how to receive future messages from senders in the same domain.