hm, okay, I was wrong. It appears that you are allowed to use old email addresses still in +editemails in other teams. In which case, this dialog isn't needed, and i'll agree with your "invalid" status :)
hm, okay, I was wrong. It appears that you are allowed to use old email addresses still in +editemails in other teams. In which case, this dialog isn't needed, and i'll agree with your "invalid" status :)