Note: this is an optional security feature. You do not need PGP/GPG to use Kraken.
One popular method for encrypting email is by using the Mozilla Thunderbird email client. The basic steps are:
- Download and install the Thunderbird client.
- Go to Account Settings.
- Click on End-to-End Encryption.
- Click on Add Key to either add an existing key or to generate a new one.
If you’re a MacOS user, you can also try GPGMail, a GPG plugin for Apple Mail.