exclamation point in emails

Hi,
I have a strange issue. I have several applications that are sending notifications back to the application admin. These are mainly written in PHP and use sendmail to send the message. I have a text box where these email templates can be created and then on the right action this template is send to the admin. The issue is that actually most of these add a ! in the message evan do this is not in the actual message that is written. So it must add this somewhere in the sending process. I also have mailscanner installed and think it maybe has something to do with this. Generally I wanted to find out if anyone had a similar issue and if there is a solution I could try so I get rid if this issue.
Here is a cut out of the instances it happens "necessarily that of the owners or! officers of this company." see it is after the "or" but it is not in the template that is saved in MySQL. Then the next one came like this "necessarily that of th! e owners or officers of this company." now it is not after the "or" but splits up the word "the". I am totally puzzled on why this happening.

Its on a Apache 2.x with RH ES3, Sendmail 8.12.11, MailScanner 4.41.2-1, ClamAV, SpamAssassin 3.0.3-1.1.el3.rf environment.

Any pointer to solve or at least troubleshote this issue would be very helpfull.

Best wishes,
Thom