Buyers are being bombarded with sales messages across many channels. And with prospective customers in new or different work arrangements, outbound email is in the spotlight as a key method of engagement.

Now more than ever, you must give people a good reason to open your email, which means there’s a lot riding on the subject line - the first step in sparking further action. A carefully crafted subject line that’s not only catchy, but personalized and humanized can make all the difference in standing out in the inbox.

35% of recipients open emails based on the subject line alone.

In this guide, you’ll find actionable tips to get replies, including email subject line best practices, go-to subject lines that work and why, and a better way to measure engagement rates so you can dig deeper on intent and double down on what works.