Learn to write a resignation acceptance letter. How to Write an Immediate Letter of Resignation (4 steps).Sample emails and letters to accept an employee's resignation, explain company resignation policies, and confirm the last day of work. Resignation Acceptance Email templates: Discover how to write an effective resignation acceptance letter. Professional notice of at least two weeks is expected. It is with regret that I formally acknowledge receipt of your resignation notice on July 18th. In the next paragraph, state the date when the employment will officially end.