[dayglored]

PGP (Pretty Good Privacy). Great stuff.

GPG (GNU Privacy Guard). Totally compatible w/PGP (same open code.)

Enigmail on Thunderbird.

Might have to lengthen my PGP keys a bit or two. :)

Screw 'em.

[zeugma]

Enigmail on Thunderbird.

Yup. Totally slick.

My keys are already big enough to survive the heat death of the universe.