mutt

Command-line email client. More information: http://mutt.org.

Open the specified mailbox:

mutt -f {{mailbox}}

Send an email and specify a subject and a cc recipient:

mutt -s {{subject}} -c {{cc@example.com}} {{recipient@example.com}}

Send an email with files attached:

mutt -a {{file1}} {{file2}} -- {{recipient@example.com}}

Specify a file to include as the message body:

mutt -i {{file}} {{recipient@example.com}}

Specify a draft file containing the header and the body of the message, in RFC 5322 format:

mutt -H {{file}} {{recipient@example.com}}