MFA(Email Notifications) for ad/ldap connections

Hello everyone

The scenario:
We have setup an ad/ldap connector and a test user.
We were able to use the test user to attempt to log in.
MFA was also worked except Email Notifications.
To verify email address, we added this parameter at connector’s profile mapper.

profile[‘email_verified’] = true;

The user’s details seem correct(the first screenshot),but Email Notifications still doesn’t work(the 2rd and the 3rd screenshoot)

The question is how can we enable Email Notifications for MFA?
Does the Applications or Enterprise Connections require any additional configuration?

Thank you in advance