new-msoldomain verification method email?

Hi!

To speed the addition of all my subdomains I thought I would powershell them into 365. The DNS verificaition method is kind of time consuming and I will have to have assistance of my DNS team. So I thought I would use the verification method called email. 

What email address does the email go to? I cant find any documentation on this?

Is it mailto:admin@subdomain.domain.com?