@RowdyGentleman and @HiltonHotels each attained an email open rate of over 50% for their Fourth of July emails. While over 7,500 Independence Day themed campaigns were emailed over the last month, only 1,320 of them put the holiday in the subject line (@eDataSource). eDataSource said, β€œThe Fourth of July email leaders once again display the benefits of precisely timed e-mails with clear, compelling subject lines.” The most successful Independence Day email categories were: apparel, home furnishings, and sporting goods. - Link