Starting from the premise that nowadays media has a privileged status in the way we relate to the other, the paper explores the ethical challenges raised by the growing mediated nature of communication. Since the mediated communication calls for a multidisciplinary examination, the article uses conceptual tools offered by a different framework. First, we draw on M. Buber's ontology of relation in order to discus mediation in terms of authenticity. Then, we analyze different views on the special dynamics of the relation between ethics, religion and mediated communication. In the last part of the article, we emphasize the idea that, in order to acknowledge the true significance of the recent changes that affect the way we communicate, they should be read in terms of a postmodern ethics.