How to restrict users to log in to other domains?

Being in a competitive reseller business, now you can keep your domain secure and keep your users with you always. You have the authority to allow/disallow your users to log in to your/other domains. 

1. The page where you will get all the details to Enable/Disable the login functionality under Reseller Settings.

2. When you will click on both the above options user can login into any domain and allow your users to log in to your white labelled website, this pop-up will appear for the confirmation of changes done.

Note - At first, the settings are Enabled for all. You can make the changes as mentioned in the doc.