PGP Encryption Server (Symantec Encryption Management Server) includes several features to simplify encryption, including Email Encryption, Secure Content Delivery, including Web Email Protection and Secure PDF Messenger, as well as being able to manage keys, and Symantec Encryption Desktop clients.
The server is certified for internet-placement scenarios, and undergoes all the rigorous security testing and reviews. The server is also an on-premise solution, which means that you deploy the solution within your own infrastructure, but can then be placed in a public-facing scenario.
There are several cloud solutions where a cloud vendor hosts your instance, but you still retain the capabilities of your product.
PGP Encryption Server will work with Azure solutions, but specific guidelines need to be followed.
In order to use the PGP Encryption server in Azure please reach out to Symantec Encryption Support to obtain these guidelines.