If the message is not arriving with the correct message class, the most likely explanation is that something has happened to one-off the form. I would suggest checking the design again to make sure the "send form definition" box is still unchecked.

If this is happening only to one user, then clearing the forms cache would be a good idea.

--
Sue Mosher, Outlook MVP
Author of Configuring Microsoft Outlook 2003
http://www.turtleflock.com/olconfig/index.htm
and Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx

wrote in message oups.com...
SP2 is installed, but has been since well before the problem arose.
The item is not arriving with the correct class either.

I have had a custom form running throughout the company for about 6
months now, which basically has some additional required fields which
edit a hyperlink in the email body. The forms are published to our
exchange server, and run on outlook 2003. They have a custom read page
which displays the custom fields.

Up until last week the read page would work fine when viewing the
email in sent items, however something has now changed which is
causing the email to open with the default outlook form instead of the
custom one in sent items now.

I am not sending form definition with the email. What has caused this
to change? the form itself has not changed for months!