Learn how to write a resignational letter if you're quitting for personal reasons. Learn how to write a professional resignation letter with our step-by-step guide, easy to use templates and helpful tips.Before writing your letter, you should consult with your direct supervisor or HR manager to follow any company processes regarding resignations. You may submit a resignation letter via email or in hard copy. General Purpose Resignation Letters: Date. Dear (Manager's name),. In this article, we cover everything you need to know about writing a resignation letter without notice and provide an example to get you started. We've rounded up tips and examples for writing a resignation letter that'll help you maintain work relationships long after leaving a company.