It is, but it doesn’t use it by default.
Again this is ALL about information. You tell me “It doesn’t work” but you don’t describe how you set it up at all, or if you’re using other plugins, or if you’re using a feature of mine. So I have to GUESS what you’ve done ??
When you give incomplete bug reports, you get sub-par help.
So start over.
How did you set up the plugin?
What did you add to the plugin as a disposable address? (Remember – it DOES NOT auto-fill anything so if you don’t put in the right data, it won’t do anything for that email)
What address are people using to sign up?
What happens when they sign up? Do they get denied or do they get in?
Do you have ANY other active plugins that handle registration or user management?
Have you done the standard debugging in WordPress (disabling everything except the one plugin to see if it works)?