Abstract: A method for sending a single alert to a plurality of recipients based on the properties of each of the recipients and of the respective receiving devices of the recipients, where each of the recipients is assigned to a media class and one or more recipient groups, comprising the steps of: creating an alert, wherein the alert having a plurality of messages; assigning each of the messages to one or more media classes; first determining one or more recipients as a function of the assigned media classes and the recipient groups; second determining the messages for the recipients as a function of the assigned media classes; and sending the messages.