description="Thunderbird is a free, open source, cross-platform email, newsgroup, news feed, and chat (XMPP, IRC, Twitter) client developed by the Thunderbird community, and previously by the Mozilla Foundation."
description="Claws Mail is a free and open source, GTK-based email and news client. It offers easy configuration and an abundance of features. It is included with Gpg4win, an encryption suite for Windows."
<li><ahref="https://www.gpg4usb.org/">gpg4usb</a> - A very easy to use and small portable editor to encrypt and decrypt any text-message or -file. For Windows and Linux. <ahref="https://theprivacyguide.org/tutorials/gpg.html">GPG tutorial</a>.</li>
<li><ahref="https://www.mailvelope.com/">Mailvelope</a> - A browser extension that enables the exchange of encrypted emails following the <ahref="https://theprivacyguide.org/tutorials/pgp.html">OpenPGP encryption standard</a>.</li>
<li><ahref="https://www.enigmail.net/">Enigmail</a> - A security extension to Thunderbird and Seamonkey. It enables you to write and receive email messages signed and/or encrypted with the <ahref="https://theprivacyguide.org/tutorials/pgp.html">OpenPGP standard</a>.</li>
<li><ahref="https://addons.thunderbird.net/thunderbird/addon/torbirdy/">TorBirdy</a> - TorBirdy configures Thunderbird to make connections over the Tor anonymity network. This extension is in beta and should be considered experimental.</li>
<li><ahref="https://www.emailprivacytester.com/">Email Privacy Tester</a> - This tool will send an Email to your address and perform privacy-related tests.</li>
<li><ahref="https://github.com/k9mail/k-9/releases">K-9 Mail</a> - An independent mail application for Android. It supports both POP3 and IMAP mailboxes, but only supports push mail for IMAP.</li>
<li><ahref="https://www.gnupg.org/">GNU Privacy Guard</a> - Email Encryption. GnuPG is a GPL Licensed alternative to the PGP suite of cryptographic software. <ahref="https://theprivacyguide.org/tutorials/gpg.html">Tutorial.</a> Use <ahref="https://gpgtools.org/">GPGTools for macOS.</a></li>
<li><ahref="https://www.mailpile.is/">Mailpile (Beta)</a> - A modern, fast web-mail client with user-friendly encryption and privacy features.</li>