Learn to write a resignation acceptance letter. If your employer is at-will, they can accept your resignation effective immediately.It's NOT considered a firing. Looking to resign from your job? Learn how to write a professional and respectful two weeks' notice email with our helpful templates and tips. Learn how to write a short notice resignation letter with samples. Find a solution to the challenge of resigning on short notice. If the resignation was verbal, you may ask the employee to complete a resignation notice to document the conversation. "Employers aren't required to continue the employment relationship through the term of notice. Get a signed and dated resignation letter.