Our server will not accept these "free" e-mail addresses for initial registration. You need an internet service provider based e-mail address. IE AT&T,Comcast,etc.
Once you register and receive your account info you can log in and change your account e-mail address to whatever you want.
Please don't e-mail firstname.lastname@example.org asking why you can't register with your hotmail,gmail,yahoo address. There is an error message in the registration process that explains we don't accept them and and e-mails to email@example.com asking why will be deleted.