Go2Linux posted a guide about setting emails from the command line with Mutt

If you are like me, you really like the command line.
And sending email while working on the command line, is good, I use it to send me notes to myself, and sometimes to send configuration files as attachments.
Is also good to have an option configured to send emails from the command line, as a way to send messages from scripts.
I will show you now how to use mutt and gmail to enable a Linux computer to send email.

  How to send email from the command line - Gmail Mutt