MHonArc is a Perl program for converting e-mail messages as specified
in RFC 822 and the MIME standard to HTML. MHonArc can perform the
following tasks:

* Convert MH mail folders or UUCP/Unix style mailboxes into an HTML
  mail archive.
* Add or remove messages to an existing HTML mail archive generated
  by MHonArc.
* Convert a single message to HTML.

Along with these tasks, MHonArc provides the following:

* A main customizable index for mail messages archived.
* A customizable thread index listing messages by thread.
* Control over message formatting.
* The ability to hook in your own custom message filters.

Homepage:
https://www.mhonarc.org/
