Stop Annoying Everyone With These Common Email Mistakes. Mistake #4: Not Closing an Email With an Expression of Gratitude
When appropriate, close your email with an expression of gratitude, such as “Thanks” or even better “Thanks in advance.” These sign-offs increase response rate by 36% compared to other methods, according to Boomerang.
“They show that you appreciate the person paying attention to your message,” says Moah, adding that thanking someone in advance makes the person more likely to want to do a favor for you.