Embodiments of the present invention relate to systems and methods for enabling entities, such as issuers, merchants, payment processing networks, and mobile-network operators, to send account-related messages and marketing messages to a user's mobile device in response to a message request sent from the user's mobile device. According to some embodiments, the account-related messages and the marketing messages are sent to the user's mobile device in accordance with message parameters that are defined by the user and that are embedded in the message request.