This study investigates academic staff and student attitudes to style and etiquette of emails. Data were collected through two online staff and student surveys. Reported use and acceptability of particular features of email style were assessed. Open-ended responses yielded four themes: the balance between formality and informality, relationships, evolution in communications over time, and mutual expectations. These themes are discussed with reference to linguistic features of email style, theories of accommodation, and politeness studies. Points of guidance to students and staff on appropriate use and construction of email in higher education are indicated.