Please accept this letter as a notice of my resignation. We've rounded up tips and examples for writing a resignation letter that'll help you maintain work relationships long after leaving a company.Due to unforeseen personal reasons, I am unable to provide any notice. Personal Family. Business. Roadmap. Security. The idea is to relay all the important information concerning your resignation while keeping it short and concise. Understanding and articulating your reasons for leaving isn't about being critical toward the employer. You want to notify the employer in writing of your resignation and the reasons for leaving.