It's a great practice to send a thank-you email to all guests promptly after a fundraising event. However, if your personalized form letter says 'thanks for attending,' ensure the person actually attended.
Have you ever received a unique thank-you email after attending an event? What made it memorable for you? Share your thoughts in the comments!
I used to take photos of all the attendees; then sent them a snapshot with a thank you card saying "looks like you enjoyed the event, thanks so much for participating!" People often called to thank US for sending the thank you/photo. :-)