Business emails ONLY

How do I enable the form to accept business emails only and make it not accept free email addresses (e.g., Gmail or Hotmail)?
It's such a basic feature which is available in all form builders but I can't find this option with pabbly forms

Hello @ZexMarketing
Currently, the option to restrict form submissions to business email addresses and block free email domains (like Gmail or Hotmail) is not available in Pabbly Form Builder.

We appreciate your feedback and are always working to improve.

ok, can you suggest a makeshift solution for this?
also is this in your roadmap?

Hello @ZexMarketing
You can email us at support@pabbly.com, and we will forward your request accordingly.