The diagram below outlines the core functionality of MailEnable and how its respective modules (Connectors, Services and Agents) interact. For simplicity, the diagram does not outline the functions of the POP retrieval Connector or List Server Connector.

The following diagram provides a high level overview the POP Connector:

 

The List server connector is responsible for dispatching messages to large lists of mail addresses. The list server connector will allow members to subscribe to a list, enforce publishing rules for the list, add headers and footers to messages published via the list, etc.