About Hightail: Founded in 2004, Hightail was working in the cloud before the term was even coined. At first the service (then called YouSendIt) was a simple way to send the large attachments that email couldn’t process, but has since grown to offer robust online file storage, sharing and management capabilities. Today, Hightail serves more than 45 million registered users across 193 countries, including professionals at 98 percent of the Fortune 500.