Limit registrations depending on an email adress

Is there a way to setup dolphin or a mod to limit the registration for users having specific email address(es)?

For example: site accepts new registrar or registrations may occur for users having '@domain.com; @anotherdomain.net (john@domain.com) kind of addresses. Please advise.

I target members based upon specific email (Domain) address.

BUMP

anyone know how to do this?

bump

hello - does anyone know how to limit registration by email address?

Thanks

In the [admin panel -> builders -> fields builder] click on "Email" field, switch to Advanced tab and replace "Check" expression from

return (bool) preg_match('/^([a-z0-9\+\_\-\.]+)@([a-z0-9\+\_\-\.]+)$/i', $arg0);

to

return (bool) preg_match('/^([a-z0-9\+\_\-\.]+)@domain\.com$/i', $arg0);

Two quick questions:

1) If I want it to be '.edu', do I simply change the 'com' to 'edu'?
2) Facebook Connect: Will this also limit people adding accounts using Facebook Connect?

Thanks for your help. I greatly appreciate it!

1) Yes

2) No

Thanks Deano.

Maybe this was obvious, but I will post it anyhow

For those of you who aren't programmers, like myself, the expression should read:

return (bool) preg_match('/^([a-z0-9\+\_\-\.]+)@([a-z0-9\+\_\-\.]+edu)$/i', $arg0);