Mapil makes secure email more convenient by mediating
between PGP and a mail agent.
Mapil is a script, written in Python, that interfaces with
the encryption product PGP to encode or decode email
messages. It supports the P/MIME standard for encrypting or
signing MIME messages and can maintain a database of
recipients so you can automatically tailor your messages to
your recipient. Mapil should run on all unix platforms with
a python interpreter. PGP versions 2.x and 5.0 are currently
supported.