MailScanner folder

[Ghetti, Ron]

ok latest version of MailScanner installed from the website on ubuntu(debian) 
it's the strangest thing.
 if I type MailScanner --lint  I get "mailscanner is not installed"
 if I look here in /opt/MailScanner  I see that it is installed with it's own etc folder.
 if I look in /etc/MailScanner I see what looks like a second installation
 can someone give me a clue how to tell which one is the right one ?
 
thanks
 -Ron