smarkmail - send email, converting plain text to multipart/alternative + HTML
smarkmail [ -f sender ] <recipient ... > -f - envelope recipient; otherwise taken from email From header
Ricardo SIGNES <email@example.com>
This software is copyright (c) 2008 by Ricardo SIGNES.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.