You can change it via the acp by going to your profile (I.e 'Admistrate profile') go to where your email address field (its at the top) and you can change it to the proper email address.
Note: You must be logged in to the Founder account since only the Founder can modify the Founder account .
No, I mean in the Founder profile. Go to u1 profile, hit admistrate this profile. At the top where it says email address, change it to the correct one.
I believe there has been issue with email addresses looking funky in the acp, but that is beside the point here, after you changed the email address, did you begin to recieve the notifications?