No matter what they say, people do judge emails by their subject lines.

In fact, 47% of marketers say they test different email subject lines to optimize their emails’ performance. That’s why it’s so important to craft subject lines that are compelling enough to get people to click through.

While they may seem like a small part of your message, they’re one of the very first impressions you have on your email recipients. And they’re a marketer’s ticket for standing out in a crowded inbox.