I believe I have made the proper change to my php.ini file and the default file as well.
I have downloaded MailServe for Leopard and it is showing me that PostFix is enabled and that Port 25 is on.
My ISP which is ATT has told me that they do not block any ports.
I have tried several different things and I am not receiving any test emails and any of my email accounts and I believe that every time I have made a change I have restarted Apache.
I am setting up a database web site and want to test to make sure that my users are registered and getting a reset or forgotten password, etc.