It is possible to have a null emailaddress. But you do have to disable the various validations and constraints throughout the system that check for null.
Hello, I downloaded the most recent project version today ( Project Type: ASP.NET MVC 5.x & jQuery, Project Version: v4.5.1 (latest), Framework: .NET Framework 4.6.1), and it now works. Thank you!
I am using the version MVC 5.x & jQuery (am wondering is that the same version in the demo) No errors that I can see...