What would be the recommended configuration for my hosting VPS?

Hello I have a VPS hosting with delivery capacity of 3,600 emails per hour. I have lists of contacts that exceed the 1800, which would be the recommended configuration?

This is the current configuration in my Conf. php file:

define(“MAILQUEUE_BATCH_SIZE”,0);
define(“MAILQUEUE_BATCH_PERIOD”,3600);
define(‘MAILQUEUE_THROTTLE’,0.5);```