About accounts

Hi,

I am currently using free zoho mail service with my domain for important websites(registration) and some notes and happy with that. I will upgrade this account.

My question is:
I will buy a new domain for email. Is it possible to open a new zoho account for that domain? (Multiple zoho accounts at the same time)

Like this:
- Primary domain account upgraded
- Secondary domain signed up with free zoho account(up to 3 emails)

Thanks