What is the simplest, most portable way to send an email in elisp?

Question

I'd like to write a little emacs command to send an email. What's the simplest way to do this? I know there are a lot of mail-sending plugins for emacs, but I really just need to send a simple little email.

Answer 1

C-x m is simple enough.

Answer 2

This works nicely:

(defun try-send-email (to subject body)
  "simple wrapper around message to send an email"
  (message-mail to subject)
  (message-goto-body)
  (insert body)
  (message-send-and-exit))

It does use Gnus' message system (as opposed to the slightly simpler mail), but it does work in an Emacs w/out any configuration on my system.