The article is devoted to the analysis of the rules of behaviour of communicants in the process of distance learning. The purpose of the study is to consider the main difficulties that arise when students and teachers communicate in the virtual space, to identify their causes and ways to overcome them. The author focuses on the rules of email etiquette. The data obtained during a survey of students and teachers of the Perm State National Research University is used by the author. The relevance of the topic raised in this article is due to the fact that at present it is an urgent need to teach students and schoolchildren the basics of digital etiquette, namely, polite communication in social networks, compliance with the etiquette of official email correspondence, etc. The methods used for research include analysis, description, observation, comparison. The results of the study showed that in the moving to distance learning, when students ' communication with the teacher becomes mediated, many students experience certain difficulties, because they do not know the rules of behaviour in cyberspace. In this regard, it is concluded that teachers should include the module " Acquaintance with digital etiquette " in the course of training in order to make communication with students more effective and develop the necessary communicative competence.