Header info is being sent in the body

When I Test the message, it formats HTML fine;

WHEN I send it via Live / instant, it puts the multipart message in as part of the body.

Message comes out as this:

--111058560652c46fe0071c42.03931122
Content-Type: text/plain; charset=UTF-8; format=fixed
Content-Transfer-Encoding: 8bit

Nevis Trailblazers Snowmobile Club(http://nevistrailblazers.com)
Nevis Trailblazers Snowmobile Club: New Post

Test Last
http://nevistrai/
------------------------------------
Last test folks  

by Network Admin on January 1, 2014
------------------------------------

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....

--111058560652c46fe0071c42.03931122
Content-Type: text/html;
Content-Transfer-Encoding: 8bit

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns=3D"http://www.w3.org/1999/xhtml">
<head>
</head>
<body>

<div style="font-family: 'Helvetica Neue', 'Helvetica', Helvetica, Arial, sans-serif !important;">
<table style="width: 100%;" bgcolor="#66aec2">
<tbody>
....