If you’re looking to make sure you get a reply back from an email, consider using these greetings.

In 2017, a data scientist analyzed more than 300,000 archived public messages to figure out which received the most responses. Using “Hey” ranked first, with a 64 percent response rate. “Hello” got a 63.6 percent response rate and “Hello.” “Hi” was right behind it at 62.7 percent. If you feel the need to go a little more formal, you should know that the results weren’t as favorable. “Greetings” yielded a 57.2 response rate, while “Dear” had a 56.5 percent chance of hearing back.