United Way will send an acknowledgment to the donor upon receipt of the proceeds. Please call us if you have any questions.This letter should acknowledge the gift of stock, such as the name and number of shares. What do you need to include in your donation acknowledgment letter? Your letter should acknowledge the gift of stock, including the ticker, the number of shares, and the date of the donation. They present an opportunity to thank donors in a. A donation acknowledgment letter (sometimes called a donation receipt or thankyou letter) is an email or paper that recognizes a charitable contribution. In 1888, James Bryce wrote that sunlight kills the germs of corruption that can infect a government, and his words remain true today.