Understanding S/MIME: Enhancing Email Security with Encryption

S/MIME keeps email private. It scrambles the message so only the person you sent it to can read it — kind of like locking a letter before it leaves your hands. It also tags the message with proof of who sent it and whether anything changed along the way.

That kind of protection isn’t built into most email. Messages move in plain text, hopping across servers and networks that anyone can tap into. If someone’s watching, they can read what’s inside or worse, change it before it arrives.

S/MIME closes that gap. It keeps your messages private and makes sure what you send is exactly what gets delivered.

Let us walk you through what S/MIME does, the pros and cons of using it, and how it compares to another common email encryption method, PGP.