@jefrii ,
1) Filtering rules - If you want to exclude a part of recipients based on criteria, you can use this type. Example, If you want to exclude recipient's whose age is less than 18, then you create and use Filtering typology rule.
2) Pressure rules - To control marketing fatigue. Example, In a week if you want to send only 2 emails per recipient, then you can use pressure rules.
3) Capacity rules - let you limit loads to guarantee optimal processing conditions. Example, If you run a call campaign and not to exceed the processing capacity of call center, you can use this capacity rule.
4) Control rules - let you check the validity of messages before they are sent. For Example, if you don't want a delivery to get triggered if there is NO subject line or to do some validations before the delivery triggers, you can use control rules.