MIME adds new headers
From: Nathaniel Borenstein <email@example.com>
To: Ned Freed <firstname.lastname@example.org>
Content-type: multipart/mixed; boundary="simple boundary"
This is the preamble. It is to be ignored, though it
is a handy place for mail composers to include an
explanatory note to non-MIME conformant readers.
This is implicitly typed plain ASCII text.
It does NOT end with a linebreak.
Content-type: text/plain; charset=us-ascii
This is explicitly typed plain ASCII text.
It DOES end with a linebreak.
This is the epilogue. It is also to be ignored.