The first time you receive a secure message, you will be prompted to create an account to register with Proofpoint Encryption. You must receive a message to sign up for Proofpoint.
Note: The only way to create an account is by receiving a secure message.
You will see the following message the first time you use Proofpoint Encryption:
The next time you want to read a secure message, you will be prompted to log in to Proofpoint Encryption using your password.