What are the secret ingredients to a secure Gmail? A triumvirate of freeware comprised of Gnu Privacy Guard encryption, Mozilla's Thunderbird e-mail application (Windows|Mac), and an e-mail encryption plug-in calledEnigmail (Windows and Mac).
Switching from open to encrypted e-mail isn't a light undertaking, and as Stephen points out, there are plenty of drawbacks and trade-offs when you swap ease-of-use for near-total privacy.
Really secure your Gmail | The Download Blog - Download.com
