Is it possible to not require an email address when creating new users?  I couldn't find a setting that would allow this to not be required.

So, we have a couple of "security" databases used for other systems that must be the source of record. When one of our user's logs into the DNN portal, I have written a bit of code in the Login.ascx that will call out to a WCF service to validate the user against one of our other databases. If the request is successful, I will then check to see if the user account exists in the DNN DB. I will then pass those credentials to the UserControl.ValidateUser() method, check for any metadata changes, update DNN if necessary and log them in. If the user does not yet exist, I will then create the user and add them to the appropriate role, then log them in.

In one of our security databases, email address is not required. I hope this makes sense. Thanks for the quick response.

Thanks, I'll look into this article.