What is the Email address for signup genius?

Excuse me, I'm having some difficulty finding the email address to sign up for Signup Genius. Could you please assist me in locating it? I've been searching online but haven't been able to find the exact address needed for registration. Is there a specific format or domain that I should be looking for? Additionally, is there a specific page on the Signup Genius website where this information is clearly stated? I would greatly appreciate your help in navigating this process.