You can always favour your prospective employer with a copy of your resignation letter sent to earlier employer. Resignation Acceptance Email templates: Discover how to write an effective resignation acceptance letter.We've rounded up tips and examples for writing a resignation letter that'll help you maintain work relationships long after leaving a company. Dear Bryant: Thank you for giving us such adequate notice of your decision to leave the company. Although we regret you are leaving and appreciate your thoughtfulness in giving us two weeks' notice, we feel that won't be necessary. But how do you transition from a fulltime job to a PRN job? Most importantly, what should be included in the resignation letter to an employer? I am writing to request a withdrawal of my resignation letter.