[Rmail][http://www.emacswiki.org/emacs/Rmail]
Rmail is the default mail reader for GNU Emacs. With it you can read multiple local and remote inboxes.
‘M-x rmail’: This moves all your mail from your local spool file and saves it in the Rmail primary file pointed by ‘rmail-file-name’ (defaults to ~/RMAIL)
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