Encryption Management Server PDF Email Protection users receive PGPMessage.pdf attachments that contain no text.
Encryption Management Server 3.3 and above using PDF Email Protection.
The PDF Email Protection PGPMessage.pdf attachments can only include plain text in the body of the file although the PGPMessage.pdf file can also include embedded files.
When an internal user sends an HTML format message to a PDF Email Protection external user, the email client will generally generate a multipart/alternative MIME format message that contains a text/plain section. For example: