I test this on your system and the email I got was:
<p style="display">-- do not edit
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cellspacing="0"> <tbody> <tr> <td
style="vertical-align: middle; border-bottom: 1px solid #ddd; height:
48pt"> <span style="color: rgb(127, 127, 127); font-family:
Georgia; font-size: 28pt; font-weight: normal">We Hear
You</span> </td> <td style="border-bottom: 1px solid
#ddd"> <img src="cid:cidremoved"
width="94" alt="osTicket Logo (kangaroo)" style="width: 94px; float:
right; vertical-align: bottom" height="53" /> </td> </tr>
<tr> <td style="width%; padding-top: 12pt; padding-right:
12pt"> Dear Neil, <br /> <br /> We received your request
and assigned ticket #TICKETNUM <br /> <br /> Topic:
<strong>Report a Problem</strong> <br /> Subject:
<strong>test ticket</strong> <br /> Submitted:
<strong>19/01/2014 7 am</strong> <br /> <br /> A representative will follow-up with you as soon as possible. You can <a href="http://www.domain.nz/support/view.php?t=TICKETNUM&e=email@gmail.com&a=REMOVED">view
this ticket's progress online</a>. <br /> <br /> Your
Definitive Support Team,<br /> Support Department </td>
<td style="vertical-align: top; padding-top: 12pt"> <span
style="color: rgb(127, 127, 127)">Definitive Support<br />
Support Department</span> <br /> <br /> <span
style="color: rgb(127, 127, 127)"> If you wish to send additional
comments or information regarding this issue, please don't open a new
ticket. Simply</span> <a href="http://www.domain.nz/support/view.php?t=TICKETNUM&e=email@gmail.com&a=longstringofnumbers"><span
style="color: rgb(84, 141, 212)">login</span></a>
<span style="color: rgb(127, 127, 127)">and update the
ticket.</span> <br /> <br /> <span style="color:
rgb(127, 127, 127)">Visit our</span> <a href="http://www.domain.nz/support/kb"><span
style="color: rgb(84, 141,
212)">knowledgebase</span></a> </td> </tr>
</tbody> </table> <div style="text-align: center">
<a href="http://osticket.com/"><img src="cid:cidremoved" width="126" height="19" style="width: 126px" alt="Powered by osTicket" /></a> </div>What template are you using? (Default or HTML) How are you sending email? (PHP or SMTP)Do you have an outgoing mail sanitization device that may be altering the emails? (such as a Barracuda Spam firewall)p.s. I'm removing your image on your post to remove your server domain, email, ticket#.