Say, my domain name is example.com. And I'm using Google Apps for Work. So, I'm having all google services with my email address like: firstname.lastname@example.org. That means email@example.com is now working like gmail account..
I've installed this question2answer and using q2a-open-login plugin to register user using Google login. And want to allow the users having email address like firstname.lastname@example.org. I want to restrict other domain specific email address to register/login.
How to achive that? Please help.