You can now whitelist specific emails or domains to access your Journey.
So for example you could enter a handful of email addresses and only those will be able to access the Journey via the email gate. Similarly you can also whitelist specific domains so that anyone with an email of that domain can access.
For example if you whitelisted moof.com. anyone that entered a @moof.com email address would gain access (email@example.com would have access, firstname.lastname@example.org would not)