We are interested in this work in the relations of exchanges and in particular the emailing. Our objective is to propose a study concerning the analysis of the situation and in particular the study of the existing in the market of the tools which treat the emailing to define the nature of the tools which already exist on the market and especially to identify the various functionalities of these tools to propose a list of functionalities which a tool emailing can integrate for a good management of a tool emailing and at the same time, that will help us to define our needs for the design and the development of our system of management e-commerce being based on the emailing.