If you want to add a certain email domain to your domain blacklist, you can go to Settings → Company and look for the section called Restricted domains.
From there, an account admin can add email domains (for example gmail.com) to a block list. Anyone trying to view your Pods using an email address from one of those domains will be blocked.
Note:
Blacklisting domains is only available in the account-wide setting, not for individual pods just yet.
Only account admins can add or remove domains — other users on the account can view the list but cannot change it.
Enter the domain without
www(e.g.email.com, notwww.email.com).