Triggers when a new subscriber is added to a list.

Adds a new user to a list or updates existing user by E-mail.

Starts an autobot on an action of your choosing.

Searches for the subscriber in your list and resturns his data. If not found you can choose to add him.

Triggers when any current subscriber unsubscribes from a list.

Attaches a tag of your choosing to an existing user.

Removes an existing user from a list.

This will return you a found subscriber or a just created subscriber.