To: mm@samples.mailgun.org
Subject: Test email subject
Content-Type: multipart/alternative;
 boundary="----mailcomposer-?=_1-1410115176966"
MIME-Version: 1.0

------mailcomposer-?=_1-1410115176966
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable

Test email text
To: mm@samples.mailgun.org
To: mm@samples.mailgun.org
Subject: Test email subject
Subject: Test email subject
Content-Type: multipart/alternative;
 boundary="----mailcomposer-?=_1-1410115176966"
Content-Type: multipart/alternative;
 boundary="----mailcomposer-?=_2-1410115176970"
MIME-Version: 1.0

------mailcomposer-?=_2-1410115176970
Content-Type: text/html; charset=utf-8
Content-Transfer-Encoding: quoted-printable

<b>Test email text</b>
------mailcomposer-?=_2-1410115176970--