Well after closer investigation I found that it is all email functions not just PM email notification. When I double checked the file and email date stamps I found that it stopped seconds after.
As I said before I have ver 6.3 classic, I upgraded from Ver 6.0
My URL is
http://www.iaeifl.org/cgi-bin/ubb/Ultimatebb.cgi Also I noticed that content-type: text/html is appearing when I try the email a friend feature.
I did download new upgrade files today. When I upgraded to 6.3 I downloaded the files a couple days after it was out of BETA.
Should I try upgrading again or open a support ticket as Charles suggested.