What is an Email Preheader and How Can it Increase Email Open Rates?

Arijit MondalArijit Mondal
10 min read

Introduction

An email preheader is the summary of text that appears next to or below the subject line in a recipient's inbox, offering a preview of the email's content. It provides additional context and can attract recipients to open the email, making it a critical element of your email marketing strategy.

The email preheader plays a vital role in email marketing by providing a secondary opportunity to capture the recipient's attention, complementing the subject line. A well-crafted preheader can significantly boost open rates by compelling recipients to engage with the email.

Contents:

  1. Appearance of the email preheader in email marketing.

  2. Why Email Preheaders Matter.

  3. Best Practices for Writing Effective Preheaders.

  4. Common Mistakes to Avoid.

  5. Examples of Successful Email Preheaders.

  6. Examples of Successful Email Preheaders.

  7. How to Test and Optimize Your Preheaders.

  8. Integrating Preheaders into Your Overall Email Strategy

  9. Conclusion

Appearance of the Email Preheader in Email Marketing

How it appears in various email clients (with examples)

The email preheader appears differently across various email clients and understanding these variations can help you optimize its effectiveness. Here's how it typically shows up:

  1. Gmail (Desktop and Mobile)

  • Desktop: The preheader appears in grey text next to the subject line, immediately following it. Example:

    Subject Line: "Exclusive Offer Just for You!"
    Preheader: "Get 20% off your next purchase, plus free shipping..."

  • Mobile: The preheader is displayed beneath the subject line, summarising the email's content quickly.

  1. Apple Mail (Desktop and Mobile)

  • Desktop: Similar to Gmail, the preheader appears in lighter text next to the subject line. It typically extends further, offering more context. Example:

    Subject Line: "Your Weekend Plans Await!"
    Preheader: "Discover the best events happening near you this weekend..."

  • Mobile: The preheader is shown below the subject line, often in a slightly smaller font, giving a full preview of the emails.

  1. Outlook (Desktop and Mobile)

  • Desktop: Outlook shows the preheader text next to the subject line, but often truncates it, so it's essential to keep it concise. Example:

    Subject Line: "Don't Miss Out!"
    Preheader: "Our biggest sale of the year is live now, shop today..."

  • Mobile: The preheader is displayed beneath the subject line but may be shortened depending on the screen size.

  1. Yahoo Mail (Desktop and Mobile)

  • Desktop: The preheader appears in grey text next to the subject line, similar to Gmail, offering a preview of the content. Example:

    Subject Line: "Limited Time Only!"
    Preheader: "Save big on your favourite items this weekend only..."

  • Mobile: The preheader is visible below the subject line, focusing on the first few words due to space limitations.

The difference between a Preheader and a Subject Line.

The subject line is the primary headline of an email, designed to grab attention and entice the recipient to open it. Conversely, the preheader is a secondary text that provides additional context or a preview, complementing the subject line to encourage further engagement.

Why Email Preheaders Matter

  • The Role of Preheaders in Influencing Open Rates.

    Preheaders play a crucial role in influencing email open rates by acting as a supportive extension of the subject line. They provide additional information or a teaser that can interest & curiosity, clarify the email's content, or reinforce urgency.

    Which can motivate recipients to open the email. When crafted effectively, preheaders can significantly enhance the appeal of an email, leading to higher engagement and improved open rates.

  • The psychology behind why Pre-headers are effective.

    The effectiveness of preheaders in email marketing is rooted in psychology, particularly in how they leverage curiosity, urgency, and relevance. Preheaders tap into the recipient's natural curiosity by offering a glimpse of what’s inside the email, encouraging them to open the message to learn more.

    Additionally, a well-crafted preheader can create a sense of urgency or exclusivity, prompting immediate action. Finally, when personalized or directly relevant to the recipient's interests, preheaders resonate on a personal level, making the email feel more tailored and important, thereby increasing the likelihood of engagement.

Case Studies and Statistics on the Impact of Well-Crafted Preheaders on Open Rates

  • Experian’s Research on Preheaders: A study by Experian found that emails with personalized preheaders had a 29% higher unique open rate compared to those without. This demonstrates the power of a tailored message in catching the recipient’s eye.

  • Litmus Case Study: Litmus conducted a case study where they tested different preheaders across various campaigns. The result showed a 14% increase in open rates when the preheader effectively complemented the subject line, compared to generic or non-existent preheaders.

  • HubSpot Data: HubSpot reports that emails with a preheader text that aligned with the subject line saw a 16% increase in open rates on average. This suggests that consistency between the subject line and preheader can enhance clarity and interest.

  • AWeber Case Study: AWeber found that when they optimized their preheader text to create curiosity and urgency, open rates improved by up to 20%. This was particularly effective when preheaders teased a special offer or time-sensitive information.

Best Practices for Writing Effective Preheaders

  • Keep it concise and compelling

    Well-crafted preheaders can boost open rates significantly; for example, Experian saw a 29% increase with personalized preheaders, and AWeber achieved up to a 20% rise with optimized preheaders.

  • Complement the subject line

    Use the preheader to enhance and expand on the subject line. Provide additional details or context to clarify or add value, rather than repeating the same information. Ensure consistency in tone and keep it concise to effectively capture attention and encourage recipients to open your email.

  • Use action-oriented language

    Incorporate action-oriented language in your preheader to drive engagement. Phrases like "Discover," "Unlock," or "Get Started" create a sense of urgency and prompt recipients to take immediate action.

    This approach makes the email more compelling and encourages readers to open and interact with your content. Keep it clear and motivating to maximize impact.

  • Include personalization elements (e.g., the recipient’s name or other tailored content)

    Enhance engagement by incorporating personalization in your preheader. Use the recipient’s name or tailor content to their interests, such as "John, your exclusive offer awaits!

    Email openings and interactions are increased when personalized preheaders provide the impression that the message is more pertinent and targeted.
    This approach helps build a stronger connection with your audience.

  • Avoid repetitive or redundant information

    Ensure your preheader offers unique value and doesn’t simply repeat the subject line. Use it to provide new details or context that complements but doesn’t duplicate the subject. This avoids redundancy and keeps the content engaging, helping recipients quickly understand what makes the email worth opening.

Common Mistakes to Avoid

  • Overloading the Preheader with Too Much Information:

    Avoid cramming excessive details into your preheader. Overloading it with too much information can make it appear cluttered and overwhelming, reducing its effectiveness.

    Instead, keep the preheader focused and concise, highlighting a key point or call-to-action. This clarity ensures that recipients quickly grasp the value of your email, increasing the likelihood of higher open rates and engagement.

  • Using generic or irrelevant text

    Avoid using generic or irrelevant text in your preheader. It should be tailored to the email’s content and relevant to the recipient’s interests. Generic preheaders fail to engage and can lead to lower open rates. Personalize and align the text with the subject for better results.

  • Ignoring the preheader altogether (letting it default to the first line of the email content):

    Don’t let the preheader default to the first line of your email content. Ignoring the preheader means missing an opportunity to craft a compelling, attention-grabbing message. Customize it to provide a clear, engaging preview that complements your subject line and encourages recipients to open your email.

Examples of Successful Email Preheaders

  • Showcase a variety of preheaders that have led to higher open rates:

    Highlight preheaders that effectively boosted open rates, such as “Unlock Your 20% Discount Inside” or “Last Chance: Sale Ends Tonight!”

    These examples demonstrate how clear, action-oriented, and relevant preheaders can enhance engagement and drive higher open rates by grabbing attention and providing immediate value.

  • Analyze why these examples work well:

    Successful preheaders work by offering clear value and creating a sense of urgency, prompting immediate action. They complement the subject line with specific details and add excitement, making recipients more likely to open the email and engage with the content.

    By providing additional context or incentives, effective preheaders enhance the overall appeal and effectiveness of the email.

Examples of Successful Email Preheaders

  • “Unlock Your 20% Discount Inside!”: Offers immediate value and urgency, encouraging quick action.

  • “Limited Time: 30% Off Your Favorite Items!”: Creates a sense of urgency with a specific discount, motivating prompt engagement.

  • “John, Here’s Your Exclusive Invite to Our VIP Event!”: Personalizes the message, making the recipient feel special and valued.

  • “Discover the Top Trends for Fall 2024”: Provides valuable content and sparks curiosity.

How to Test and Optimize Your Preheaders

  • The importance of A/B testing preheaders:

    A/B testing preheaders is crucial for optimizing email performance. By comparing different preheaders, you can determine which version drives higher open rates and engagement. This process helps identify the most effective messaging, refine your strategy, and enhance overall campaign effectiveness, ensuring your emails resonate better with your audience.

  • Tools and techniques for testing different preheader strategies :

  1. Email Marketing Platforms: Use built-in A/B testing features in platforms like Mailchimp, SMTPMaster, or Campaign Monitor to test various preheaders and analyze performance metrics such as open rates and click-through rates.

  2. Analytics Tools: Leverage tools like Google Analytics to track engagement and conversion metrics from different preheader variations, helping you understand which preheaders drive better results.

  3. Split Testing: Implement split testing by sending different preheader versions to segmented parts of your audience. Monitor the performance of each version to identify the most effective strategy.

  4. Feedback Surveys: Collect feedback from recipients through post-email surveys to gauge their reactions to different preheader strategies and make informed decisions based on their responses.

  • Analyzing results and refining your approach :

    After conducting A/B tests on preheaders using tools like SMTPMaster or HubSpot, analyze performance metrics such as open rates and click-through rates to determine which preheader resonated best with your audience.

    Use analytics tools to track these metrics in detail. Heatmaps and click tracking can reveal user engagement patterns, while feedback surveys provide qualitative insights.

    Based on these findings, refine your preheader strategies by adopting the most effective elements and continuously testing new variations to enhance your email marketing effectiveness.

Integrating Preheaders into Your Overall Email Strategy

  • How preheaders fit into the larger picture of email marketing:

    Preheaders play a vital role in email marketing by complementing the subject line and enhancing message clarity. They provide additional context, drive engagement, and boost open rates.

    Integrating preheaders effectively with your overall strategy, including content and design, ensures a cohesive approach that maximizes the impact of your email campaigns and improves overall performance.

  • Aligning preheaders with your campaign goals and audience segmentation:

    Preheaders should be tailored to align with your campaign goals and audience segmentation. Customize them to reflect specific offers, messages, or calls to action that resonate with different audience segments.

    This alignment ensures that preheaders effectively support your campaign objectives and engage recipients by addressing their unique interests and needs.

  • Examples of campaigns where preheaders played a crucial role :

    1. Retail Promotions: In a holiday sale campaign, a preheader like “Extra 20% Off Clearance Items—Today Only!” complements the subject line by emphasizing urgency and additional savings, driving higher open rates and conversions.

    2. Event Invitations: For an exclusive event, a preheader such as “Join Us for a VIP Experience—RSVP Now!” enhances the subject line by highlighting exclusivity and prompting immediate action, leading to increased event attendance.

    3. Product Launches: In a new product announcement, a preheader like “Be the First to Try Our Latest Innovation” adds excitement and urgency, encouraging recipients to open the email and learn more about the product.

Conclusion

Email preheaders are a vital element of your email marketing strategy, providing a secondary opportunity to capture recipient interest and enhance engagement. By offering additional context or value, preheaders complement the subject line and play a significant role in increasing open rates. Effective preheaders are concise, compelling, and aligned with your campaign goals and audience needs.

To maximize your email marketing impact, start optimizing your preheaders by applying best practices, testing different strategies, and analyzing results. Tailoring your preheaders to resonate with your audience and reflect your campaign objectives will drive better performance. Begin refining your preheader approach in your next email campaign to see tangible improvements in engagement and open rates.

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Written by

Arijit Mondal
Arijit Mondal