code to stop @blahbah registrations

[Dun]

Is there a way registrations from certain email providers?
Ie: entering me@hotmail.com returns the result "unacceptable email address" .
I'm getting hit by spammers and want to deny all hotmail, yahoo and AOL addressess.

[website]

if (preg_match('#.+?@hotmail\.com#i', $email) || preg_match('#.+?@yahoo\.com#i', $email))
  die('unacceptable address'); 

then you can just continue with the

|| preg_match('#.+?@yahoo\.com#i', $email) 

replacing yahoo.com with something else, NOTE: the \ must be before the period.

Hope that helps!

[Dun]

You beauty!
Thanks.