In this article, we discuss what to include in a professional resignation letter and we share examples of resignation letters you can use for reference. Linked below are templates for resignations and retirements.Please be certain that your letter is signed, dated correctly and addressed to your administrator. Please accept this message as my formal notice of resignation. I am fortunate to have received a long awaited opportunity that I cannot pass up. Professional resignation letter examples for different reasons. Free templates and writing guide to resign on a positive note without feeling awkward. Learn how to write a resignational letter if you're quitting for personal reasons. Your resignation letter due to relocation should follow the same format as a business letter.