From AxCMS.net 5.5.1 on, we offer some basics to realize a 2-phase-registration. You can test it right away. In LS of AxCMS.net or of Sample (version 2.2. and higher) exists a Registration-Page (Registration.aspx in AxCMS.net / Registration.YourExtension in Sample). If you enter your user data there and provide your correct email address, you will receive an email containing a link to a custom Activation-Page. This Activation-Page activates your account and assign some default rights to you.
Our Sample-Project shows you an example how to extend and work with our basic registration.