Sending mail with report in the body

[aydakut]

Hi, Our purpose is to send mail with report (prepared in Report Studio) in the body. We tried to attach it in html but it didn't work because the server converts it into .mht. Also setting the parameter name RSVP.FILE.EXTENSION.HTML to TRUE didn't work.
So is there another way to send the mail with html attachment preventing conversion to .mht format?
If not, is it possible to write a script to show the report in the body section of the mail.

Note: Our Cognos Version is 8.4