Ensure the most current form has been submitted. Learn how to write a professional resignation letter with our step-by-step guide, easy to use templates and helpful tips.This article teaches you how to write a resignation email with the help of resignation letter email examples and our resignation email template. An employee wishing to leave in good standing shall file a written resignation with the appointing authority in the form of a Resignation Notice or a letter. At the top of your resignation letter, include your first and last name, your street address and your city, state and zip code. Add contact details, company name, and date. Why should I write a resignation letter? Resignation letters are professional courtesies that extend your professionalism, even in the last.