Emacs offers two easy-to-use methods for composing emails:

• mail - a simple method for plain text email messages
• message-mail - a more sophisticated option that supports multipart MIME messages

I will intentionally skip the GNUS and MH-E modes here.

Both of these email composers open a buffer with an email template, allowing for quick composition and sending with a single keystroke. They are ideal for sending a quick message while working on other tasks.