Cloudflare invites not working

Hi there, I have been trying to grant an email user from my personal domain access to my account. I tried different email addresses on this domain but I see that they do not get any requests. I tried inviting my Gmail account and I received the invite email and so I was wondering if my domain is blacklisted on Cloudflare.

Also, when I cancel the invite, I get a notification on that email letting me know that the invite has been cancelled.