Thunderbird
thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. the project strategy is modeled after mozilla firefox.
Mynigma is a new kind of email client with built-in encryption.
Mynigma is a new kind of email client with builtin encryption.
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privacy-protection email-client Discontinued file-encryption
thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. the project strategy is modeled after mozilla firefox.
Free Open Source Windows Linux BSD Mac Haiku
Secure email with absolutely no compromises, brought to you by MIT and CERN scientists. Swiss Based ProtonMail is incorporated in Switzerland and our servers are located in Switzerland.
Freemium
There’s big news attached. The best way to manage email on a Mac gets even better with OS X Yosemite.
Free Mac OS X iPhone iPad
Mailvelope is a browser extension that allows to exchange encrypted emails following the OpenPGP encryption standard.
Free Open Source Mac OS X Windows Linux Chrome OS Chrome Firefox
MsgSafe.io provides private, encrypted, online communication with layers of security you can trust.
Freemium Android iPhone Web S/MIME OpenPGP
mailbox.org offers a secure e-mail account for home and business use. The domain name, [email protected], is easy to remember and can be understood anywhere in the world.
Commercial Android iPhone Android Tablet iPad Web Kindle Fire Windows Mobile
SCRYPTmail is true end-to-end encrypted email service. Email and meta data, i.e sender / recipient are encrypted when you communicate within scryptmail domain.
Freemium Web
An extension to send secure, encrypted messages through Gmail. SecureGmail encrypts and decrypts emails you send in Gmail. This happens all on your machine, and the unencrypted text never reaches Google servers.
Free Open Source Mac OS X Windows Linux Chrome Gmail
Free email service with no ads and no strings attached. Also contacts and calendar features.
Free Web