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.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.