Underestimating the importance of the subject line. The subject line is your headline. Make it interesting, and you’ll increase the odds of getting the recipient’s attention. Our inboxes are cluttered; you need to be creative and direct to help the recipient cut through the noise. You should consistently use meaningful and descriptive subject lines. This will help your colleagues determine what you’re writing about and build your “inbox street cred,” which means important messages are more likely to be read.

Спасибо!