Mutt is a very old and reliable command line mail user agent used for multiple Operating Systems including Linux.
It have lots of amazing features, very much user friendly and supports POP3, IMAP, SMTP etc.
This post is to configure gmail in mutt, since gmail is a widely used EMail system. Any Linux developer who wish to contribute to kernel should send the patches from a non-HTML based email system (bye bye web mail..). So if we have mutt configured in terminal, it is very easy to attach sources and send mail.
1. Go to gmail web -> Settings ->Forwarding and POP/IMAP
a) Enable POP Download
b) Enable IMAP access.
2. Install mutt in your machine.