Tiger Envelopes makes encryption automatic with
almost any email program, allowing you to continue
reading and writing mail the way you always have.
It installs with one click on Windows, Mac, and
Linux. It automatically configures Outlook,
Outlook Express, Thunderbird, Mac Mail, and KMail. Tiger is a personal mail proxy server with automatic
encryption. It uses POP3, IMAP, and SMTP to work with
almost any mail client, crypto plugins to work
with almost any type of cryptography, and Java to
run on almost any operating system. Plugins for
Bouncy Castle, GPG, and PGP are included.