Safe E-Mailing for Dummies (Wired mag article)

[McKenzie]

<snip>

The Ciphire Mail application, free for individual users, nonprofit organizations and the press, works in conjunction with all standard e-mail programs. It operates almost invisibly in the background, encrypting and decrypting e-mail missives and digitally signing each message to confirm its source.

<snip>

http://www.wired.com/news/infostructure/0,1377,66324,00.html

I use Steganos because it's simpler than PGP and has strong algoritms.
But some e-mail clients will bounce Steganos-encrypted .cab files for security reasons.

[salvorhardin]

1. Easy crypto in Windows

WinPT (Windows Privacy Tools) has just about everything you'll need to start encrypting files and e-mail in Windows. The installer will install both Gnu Privacy Guard (GPG, an open source alternative to PGP) and Windows Privacy Tray (an easy to use graphical front end for GPG that lives in your system tray). WinPT even includes a plug-in for Outlook Express and Eudora E-Mail.
http://winpt.org
http://winpt.sourceforge.net/en/download.php

Enigmail is an add-on for the Mozilla, Netscape and Thunderbird e-mail programs that will allow you to automatically encrypt and decrypt messages as well as exchange keys.
http://enigmail.mozdev.org