This document summarizes a study on the development of an L2 learner's email literacy from writing to peers to writing to authority figures. The study examined one participant's 266 emails over 2.5 years. It found that the participant's language use, message length, structure, and request strategies differed between emails to peers versus professors. Specifically, emails to professors were more formal, shorter, and used more indirect and mitigating language. The participant's email practice evolved over time and was influenced by both their L1 writing style and growing experience with institutional communication norms.