I have an application on Linux which sends email to management staff to
notify them of a request and to ask for an approval.

I'd like to send a simple HTML form in the email with two buttons, "Approve" and "Reject" with a text input element for comments.

I have a form which works for Outlook, but when I send the form to a Blackberry, the HTML form elements are stripped out and the page reduced
to the text only.

Is there a way to embed form elements in an email message?

Thanks in advance for your help!

BlackBerry devices do not (as of this writing) support HTML email. You could, though, uses simple links in your email so that the user could click one link or the other, like so:

==
Dear moderator, a posting to your moderated thingy needs approved.

Click here to Approve:
http://some.we.server/script.php?m=approve

Click here to Reject:
http://some.we.server/script.php?m=reject

Thanks,
Admin
==

That's about the best you'll get I think...