Embodiments of the present invention include systems and methods for handling large numbers of messages of one or more message types. In embodiments, the scalable messaging system reads from lists of recipient addresses and template messages, mergers them into messages, removes known blacklisted addresses, facilitates the rapid delivery of these messages via a dynamic queuing and dynamic message server deployment, and stores errors and other statistics. In embodiments, the scalable messaging system may include messaging system instances at different locations.