Quote Originally Posted by grynmoors View Post
Yes, something like that except maybe with an alert dialogue that pops up when they hit submit: "Email addresses from this domain are restricted. Please use an alternate email address" (some similar wording) that they have to click "ok" to.

...and a spot in admin panel were the administrator can enter in the domains he/she wants to "ban" from registration (like they have in most forum admin panels).

I try to avoid too much javascript, direct code is much faster

You can add a column to the config table with stored emails then use this script to check it

A better way for all these mods is to write an autoinstaller like phpbb has, that way ppl can pick and choose what goes in and stays out.