Encryption technologies get a lot of coverage in the media these days. PGP is a data encryption and decryption program that can be used for encrypting texts, emails, and other data. Thanks to these plugins, you can encrypt your WordPress e-mails using PGP:
WP PGP Encrypted Emails: this plugin lets you sign and encrypt WordPress e-mails to protect your privacy. Just add your PGP keys to get started.
SimpleSecure: a secure contact form that encrypts your messages. It uses a pure PHP port of the GPG encryption functions. You can add a secure contact form to your website using a simple shortcode.
wp2pgpmail: adds a simple PGP mail form to your website. Just enter your public key and your visitors can send you PGP encrypted messages.
Have you found better PGP e-mail plugins for WordPress? Please share them here.