The enctype would have only interfered with the attachment. If the email doesn't send, then the problem is likely in the settings or server configuration.
That information is on the page: webassist/email/waue_email_2.php
if you attach a copy of that, then I might be able to make a suggestion based on what I see.
A way for you to debug is to add:
<?php var_dump($_SESSION); ?>
to the page and it will write information about the email being sent including any errors.