Let’s take a look at the image below, it’s a screenshot of an email header from a Paubox encrypted email.
Starting from the top and working down, the first green box highlights the 256-bit encrypted connection from Paubox Encrypted Email to Gmail.
The second green box showcases the encrypted connection from the sender’s mail server to Paubox Encrypted Email. As you can see, this is also a 256-bit encrypted connection.
The third green box at the bottom is something special we added, which verifies that Paubox did indeed send the email.