CMS Made Simple Forums

Where will I find the code that verifies the an email address has already been used?

For my client's members to register and view member only web content their email address must be in a list of member emails.  I want to add a little code to verify that the person registering is already a member of the organization.  I have "No duplicate emails" checked and want to add the code to check for valid email address while checking it email has been used.  There are 400+ members and I think only 40% to 60% will actually register or login to view member content.

Is there a better way of doing this?

Thanks
Mark

Selfreg and FEU don't care if an email address is used more than once..... They do care if a 'username' is used more than once.

However, if you want to make sure that the 'email address' is from a certain domain, check out the action.reguser.php file.