This menu allows you to specify if the system will allow/disallow users registering from specific e-mail domains on your site. You may either 'allow' or 'block' certain email domains from registering on your site. Please note that use can use either one of these features at the same time. You cannot use both at the same time…we hope the logic of that doesn't need to be explained. :)

With this option you have the ability to specify certain domains that you want to allow to register on your site. In other words, only users using email addresses from the particular domains you enter here will be able to register on your site. No use of "wildcards" is allowed within this feature.

With this option you have the ability to specify certain domains that you want to block from registering on your site. Users using email addresses from the particular domains entered into this admin tool will NOT be able to register on your site. No use of "wildcards" is allowed within this feature.