Can I make a form secure

Can I make a form so that only employees from a certain company can see it? IE: they have to enter their work email address, and the logic will recognize the domain (john.doe@domain.com, jane.doe@domain.com, gunter.german@domain.com, etc.) regardless of the persons name and allow them to fill in the form? However, if the domain name is NOT the correct format, it would deny the form to be viewed or filled out?

Yes, you can conditionally do this in the form and far as I could see, you have already implemented this. Do you still need help? Let us know. 

Thank you, I did figure it out :D