Did you know that welcome emails have 320% more revenue generated per email than other types of promotional emails? Properly optimizing your subject line is a good place to start to ensure that your welcome emails are properly optimized. Adding the word sale into your subject line can help to increase your welcome email open rates. Be sure to send real time welcome emails as opposed to sending welcome emails in batches. It feels more personable and also has a much higher transaction rate. To learn more about properly optimizing your welcome emails check out this graphic from Easy SMTP.
