Flail: Perl-based command-line mailing user agent (MUA).
Although its code may not be the cleanest, Flail's primary audience is Perl hackers who will most likely enjoy its functionality. It may not be the best option for those not familiar with Perl.
To use Flail, you will need to obtain the following Perl modules: ANSIColor, File-Sync, libnet, MailTools, TimeDate, Time-modules, MIME-Base64, IO-stringy, MIME-tools, MailFolder (with a slight patch not available on CPAN), POP3Client, Mail-IMAPClient, and Proc-Simple.
Version 0.2.5: N/A