Could this be the best-kept secret in email marketing? Preview text, the Johnson box, or email preheader —  whatever you call it, too many email marketers fail to take advantage of this prime piece of inbox real estate.

Find out how to use preheader text strategically and effectively

This comprehensive guide breaks down the basics of coding and executing stellar email preheader text. Follow these tips so you can begin using it as an email open booster and conversion-driver. Download the guide to discover:

• Ideal lengths for preview text for all major email clients.
• Dos and don’ts: What to avoid with email preheaders.
• 5 ways to maximize the preheader space.
• Advice for email developers on coding preheader text.

If your email preheader still looks like this:

“Having trouble viewing this email? Click here to view it in a web browser.”

You’re missing out on a major opportunity. Find out how to optimize your previews for more opens and conversions. More than a third of people say they open emails based on the subject line alone. Enhancing your subject lines with better preview text may be the nudge your subscribers need.