Resignation acceptance letter template. Resignation Acceptance Email templates: Discover how to write an effective resignation acceptance letter.Below is a sample union resignation letter. You should check your union's constitution and bylaws to see if it is specific to whom a resignation must be sent. Use an attractive header with your personal contact info, include the recipient's name, company and address, and include the date. Fill in the blanks and you'll be able to bid adieu to your current job in a way that's nothing but professional, polished, and respectful. Resignation Acceptance Email templates: Discover how to write an effective resignation acceptance letter. Start With the Nuts and Bolts. The letter typically includes the employee's reason for resigning, the effective date of resignation, and thanks to their employer and colleagues. Write out the month, day and year two inches from the top of the page.