Snowbox is a small and easy-to-set-up POP3 server. It supports APOP, SSL, and IPv6.
The plainMail2HTML utility creates and attaches an HTML part to a text/plain email message. It can be used with text-based email clients (e.g. Mutt) to convert a text/plain message into a multipart/alternative with an HTML part and send it.
A peer-to-peer network-based digital currency.
A small, fast, and efficient POP3 server with virtual domains.