This study draws from personality psychology and linguistics of written communication to explore the characteristics of self-selected well-written email communications (N=273) solicited from Polish managers who organized and supervised the (remote) work of their units during the COVID-19 period. The focus is on the writing of managers with above-average levels of conscientiousness and agreeableness, as these personality factors are predictors of efficacy in the completion of two work-related goals, Achievement and Communion, according to the Theory of Purposeful Work Behavior. The linguistic patterns responsible for effective email communication are identified through both automated and qualitative textual analyses of the email sample. The study has implications for management training via the assumption that linguistic patterns that a reflexive manager uses in writing are subjected to monitoring and can be modeled and adapted to. Specific recommendations for managerial writing styles concern informational, instructional, explanatory, feedback, and query messages.