CryptoMailer

TheGreenBow CryptoMailer encrypts the e-mail you send to clients, colleagues in one click without having to share anything with them (secret key, password,..). CryptoMailer is automatically integrated in Thunderbird, Outlook, Windows Live Mail and it is fully compatible with all other mailers and webmails. It is as simple as install the software, add your e-mail address and click 'encrypt and send'. Features:

• Strong integration with Thunderbird, Outlook, Windows Live Mail. One click to send an e-mail encrypted, and one click to decrypt received encrypted e-mails
• Support of Windows 8 32/64-bit (see support for other OS)
• Support of all Webmail like Gmail, Yahoo Mail
• Read and send your e-mail as you always did before
• No limit in size or number of e-mails you send
• No need to know if your contacts already installed CryptoMailer
• No need to create a dedicated e-mail address, keep yours
• No need to exchange a secret passphrase, CryptoMailer does it for you
• Ability to setup multiple e-mail addresses (office, personal)
• Ability to create rules to force encryption to some of your contacts.
• Unrestricted ability to add large documents, add recipients, add images like you would do for non encrypted e-mail

Version 4.x is obsolete.