@epixmedia
No, it’s not possible to only disable lockout email notifications which are the result of invalid login attempts by the admin user. And it’s also not a PRO feature.
If everything is properly configured you should by default get 3 (configurable) temporary lockouts after which the IP address attempting to login as admin is permanently banned (in the .htaccess file if using Apache web server).
(Assuming the Automatically ban “admin” user setting in the Local Brute Force Protection module is enabled. Note (permanent) “ban” should read (temporary) “lockout”).
If the attacker switches to another IP after being banned, another 3 temporary lockouts will occur after which the new IP will be banned as well etc etc
Check the Logs page and try and determin whether these host lockouts are occurring as a result of invalid (admin) login attempts from a single IP address or from multiple IP addresses. Another way to check is to look at the IP address in the lockout notification emails received.
In short when the plugin is properly configured you should by default only get 3 host lockout emails per IP (which is attempting to login as admin).
How many host lockout emails are you receiving ?
Also does the admin user actually exist ?
What web server are you using ? (Apache, NGINX, MS IIS)
If properly configured it is possible to minimize these host lockout email notifications. Possibly to 0 or just 1 per IP.