Dynamic Mass Email Function

Hi, Is it possible to create a mailing list ie all@example.com on cPanel that would email all email accounts on cPanel? I am looking for a dynamic list, so that I won't have to update it when a new email account is created or an existing one is deleted. If such a list can be created, can it be accessed from other domains or cPanels? (let's say from a@example2.com. Thanks!