How can I check if a domain from an email is blocked?

I received an error when trying to create a user, on production. I know is not 429 nor 409, because I handle those errors. 409 is not because the user doesnt exist, and 404 either because the group exists… the integration is working fine… but since is in production I cannot reproduce it to see if I am getting a 400, because I should be trying to create a user in prod.
Is there a way to check if the domain of the email of specific user is blocked by zoom ( Error Code: 11321
Email domain is blocked by Zoom Trust & Safety.)