GPGMail is an open-source encryption and signing plugin for Apple's Mail.app. It is a plugin for the popular email client that allows users to encrypt and sign their emails using the OpenPGP (Pretty Good Privacy) encryption protocol. With GPGMail, users can send and receive encrypted emails, digitally sign emails, and verify digital signatures. The plugin also allows users to store their private keys securely and manage their public key ring. GPGMail can also be used to encrypt attachments, ensuring that only the intended recipient can open the file. GPGMail is an excellent way for users to protect the privacy of their emails and ensure that their communications remain confidential.
It is safe and fast, fast with super features, I use it from the introduction, This is a great product, I love it!