A system for sending data from at least one computing device, which may be an email server, located at a user location, to a plurality of handsets. The system includes an internal system monitor associated with the at least one computing device, and the monitor provides application connectors deployed at the user location. The system also includes at least one wireless gateway router and a mobile client, which provides a client infrastructure installed on the plurality of handsets, such that the at least one computing device acts uni-directionally and thereby provides secure delivery of the data.