Sometimes, emails can be sent to you which are written in HTML. Such emails can sometimes contain suspect
HTML code. This code may not be dangerous, but to MailWall appear to be unusual and as such are treated
with suspicion. The email is converted to plain text. As a result, you still receive the email, but the 
HTML adornment is stripped out, leaving the content without the suspicious HTML code. <BR><BR>
This feature is turned on by default. You can use this option to turn this feature off.