The domain name (mydomain.com) I used to create my free pro Zoho email address is expired. However I had a similar one (my-domain.com) which I renewed recently. But when I want to use it as an alias it is said " You have reached the limit of free domains. Evolve to a superior offer to add more domains."

Any help?

Thanks in advance.

Ps: I can still send emails from my johndoe@mydomain.com but can't receive any.