Creating Azure Account using my company email group address

Question

Hi,
I am setting up an Azure account for my company.

I have made multiple attempts. But each time Azure forces me to either:

1. Create new email account on outlook.com
2. Use existing email account on gmail
3. Use existing email account on yahoo

I would rather use existing email account on my company domain.
I would actually like to use an email group - where multiple senior admins in my company can manage the Azure account of my company.

I am trying to understand how Microsoft wants us to setup our company presence on Azure.

Any help on how companies are supposed to create accounts on Azure.

Thanks!