I am trying to verify a facebook business account,

it requests what my domain name is for verification later,
i input
http://<mydomain>.life

Later it asks me for the email associated with the domain to verify, 

I input:

administrator@<mydomain>.life

I am not receiving the email, no matter how many times i try to resend. I've waited a couple hours now,
My MX records are set for least priority (based on the info when setting up) i did this days ago, 

I do receive some emails from Facebook, and as far as i can tell all other email general emails.

However, i do not receive any emails pertaining to them trying to validate my domain with domain email.