Can you do something like this in the message body? You MAY need to get into the code and change the encoding to text/html. Not sure if it's set up by default.
From: [firstname] [lastname] <[email]>
<table>
<tr>
<td>Subject: I am contacting you via the website.</td>
<td></td>
</tr>
<tr>
<td>Name: [firstname] [lastname]</td>
<td>Telephone: [tel]</td>
</tr>
<tr>
<td>E-mail: [email]</td>
<td>Another field: [field2]</td>
</tr>
</table>