What do you need to include in your donation acknowledgment letter? A donation acknowledgment letter (sometimes called a donation receipt or thankyou letter) is an email or paper that recognizes a charitable contribution.You may make a gift to Suffolk University Law School using your credit card via the secure online form on this page. EAC Network accepts the following in-kind donation of goods. Simply input your zip code and complete the form that follows. If pickup dates are available, you will then be able to schedule your pickup online.