An acceptance letter confirms you are taking the job and shows your appreciation for the offer. The medium has no effect on its legality.There are 7 acceptance letter samples you will see here. They can be used for different purposes. Can I back out of it if I receive a better offer from another company? Accepting a job offer email example. In this quick guide, we'll show you how to write a stellar acceptance email so that you can make a positive first impression on your employer. Can I back out of it if I receive a better offer from another company? This is a full-time position based in South San Francisco, California. 1. What should I do if I receive a jury summons in the mail?