======Synopsis:======
[[set]] mail_type [MBOX | MAILDIR]

======Description:======
If you set this variable, EPIC will check your maildrop for new mail.

For MBOX, it will check your mail spool, while for MAILDIR, this will be
given directory's subdirectory //new%%/%%//.

You must set your MAIL (for mboxes) or MAILDIR (for maildirs) variable
to point to your maildrop.