Adobe Captivate Prime rejecting specific domain/email addresses?

[GRock97]

Learners are being blocked at the "Create an Account" page, user enters email address and received the following error message:  "Can't sign up with this domain.".  This happens before clicking creat an account - as soon as email is put in field?

This error just started today - is anyone else having the same issue?

[Debiprasad_Maharana]

Hi,

Thank you for contacting Adobe Captivate Prime Team. 

We need little more information about the error to help you resolve it. 

Can you please record the issue and share it with us? Or you can reach the Captivate Prime team using the support channels below. We would like to take a look at the issue and I am sure we can help you resolve it.

https://helpx.adobe.com/contact/enterprise-support.other.html#captivate-prime 

Hope to hear from you soon.

Regards,
Debiprasad Maharana
Adobe Inc.