What is Mutt?
Mutt is a small but very powerful text-based mail client for Unix operating systems. Some of its features are: color support, message threading, MIME support (including RFC2047 support for encoded headers), PGP/MIME (RFC2015), various features to support mailing lists, including list-reply, active development community, POP3 support, IMAP support.
Comments and Reviews
Said about Mutt as an alternative
It is a pure command line email client
mutt is a command line email client
More modern features while still bein completely contained on the command line, Mutt is a very good alternative to Alpine.