From: John Doe Content-Type: multipart/alternative; boundary="Apple-Mail=_C5D1E5D9-0F1E-429C-98AD-D70C669BF5ED" Subject: multiple html parts Date: Wed, 11 Mar 2015 15:27:25 +0100 To: john@doe.com --Apple-Mail=_C5D1E5D9-0F1E-429C-98AD-D70C669BF5ED Content-Type: multipart/mixed; boundary="Apple-Mail=_89845EDF-F75F-44FC-A9E3-69A4A41E5539" --Apple-Mail=_89845EDF-F75F-44FC-A9E3-69A4A41E5539 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8
Hello
--Apple-Mail=_89845EDF-F75F-44FC-A9E3-69A4A41E5539 Content-Transfer-Encoding: 7bit Content-Type: text/html; charset=us-ascii
World
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