Learn how to write a resignation letter with a notice period. Please accept this as my formal letter of resignation.Yesterday I gave my two weeks notice along with my letter of resignation. The letter stated that my last day would be September 11th. This article teaches you how to write a resignation email with the help of resignation letter email examples and our resignation email template. Your employer probably wants a resignation letter which appropriately documents that event. There may be some potential issues. A two (2) weeks notice resignation letter is the most common letter used when notifying an employer of an official resignation. I regret to inform you that, after much thought, I have decided to resign. Please accept this letter as a formal notice of my resignation.