Problem with MPEG file type

["Luís Fernando C. Talora"]

Fellows,

I had the followin line in filetype.rules.conf:

    deny MPEG            No MPEG movies          No MPEG movies allowed

Sometimes, users used to complain about send messages without any 
attachments and receiving an error from MailScanner, saying "No MPEG 
movies allowed". After I commented that line, the problem stopped. I 
seems that, under some unknown circumstances (at least for me), 
MailScanner "sees" some nonexistent MPEG attachments on the messages. 
Have you guys ever experienced that? Is there a solution (other than 
disabling the line above)?

Thanks a lot!

Regards,

Luis Talora