Multiple studies have shown that the subject line is the most important factor in driving digital marketing results. You can spend hours composing a truly informative email for clients and prospects, but it’s a waste of time if no one reads it. The good news is that you have many more characters in the subject line than you’re using—about 85. The average email subject is only 45 characters. What a waste! The thinking used to be that you want the subject line to be as short