How to Write Email Subject Lines That Get Clicked

Email subject lines are often the first thing recipients see, and they play a critical role in determining whether an email is opened or ignored. In a world where inboxes are flooded with countless messages daily, crafting a compelling subject line is essential for cutting through the noise and grabbing attention. 

A well-written subject line can significantly boost open rates, enhance engagement, and ultimately drive the success of your email marketing efforts. However, writing effective subject lines isn’t always straightforward. It requires a deep understanding of your audience, their needs, and the value you’re offering. 

Moreover, with the growing importance of mobile devices in email consumption, it’s crucial that your subject lines are optimized for small screens and quick reads. From creating a sense of urgency to personalizing the message, there are several strategies you can employ to ensure your subject lines stand out. 

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This guide will walk you through best practices, tips, and common pitfalls to avoid, helping you craft subject lines that not only capture attention but also entice recipients to click through. Whether you're a marketer, a business owner, or just looking to improve your email communication, mastering the art of the subject line is a key step toward achieving success.

Understand Your Audience

To write email subject lines that get clicked, it’s essential to first understand your audience. Knowing who you’re speaking to allows you to craft messages that resonate and drive action. 

This starts with segmenting your email list based on demographics, interests, and behavior. For example, if you sell fitness products, your subject line for a beginner’s workout guide should differ from one targeting seasoned gym-goers. By segmenting, you can tailor your language, tone, and offerings, ensuring you speak directly to the recipient's needs.

Next, consider the pain points and desires of your audience. Are they looking for convenience, savings, or expertise? Craft your subject line to address these motivations clearly and directly. 

Use language that appeals to these emotions, whether it’s urgency (e.g., "Save time with these quick meals") or value (e.g., "Unlock exclusive discounts just for you").

Additionally, personalize subject lines to make them more relevant. Adding a recipient’s name, location, or past purchase behavior can immediately grab attention. For example, “John, here’s a special offer just for you!” Personalization fosters a sense of individual attention, increasing the likelihood of a click.

Ultimately, the more you understand your audience’s preferences and pain points, the better you can write subject lines that attract attention and prompt action.

importance of email subject lines

Be Clear and Specific

When writing email subject lines, clarity and specificity are crucial for encouraging recipients to open your message. A vague or unclear subject line can confuse or frustrate readers, leading to missed opportunities. Instead of opting for clever, abstract phrases, focus on providing a clear idea of what your email contains.

Start by using concise language that immediately communicates the purpose of your email. Avoid buzzwords or jargon that might not resonate with all recipients. For instance, instead of a generic subject like “Exciting Offer Inside,” try something more specific like “50% Off Your Next Purchase – Limited Time Only.”

Specificity also plays a role in establishing trust. When you’re clear about what the email is about, recipients feel confident that the email is relevant to them, which increases the likelihood they’ll open it. 

For example, if your email is about a product update, mention the product by name in the subject line, such as “New Features for [Product Name] You’ll Love.”

Lastly, specificity helps with segmentation. Tailor your subject lines to different groups within your audience, reflecting their interests or past behavior. A personalized, specific subject line speaks directly to the recipient, increasing the chances of a click and engagement.

Create a Sense of Urgency

Creating a sense of urgency in your email subject lines can significantly boost open rates by prompting recipients to take immediate action. This tactic works because it taps into the natural human tendency to avoid missing out on time-sensitive opportunities, often referred to as FOMO (Fear of Missing Out).

To effectively create urgency, use language that conveys a limited-time offer or impending deadline. For example, phrases like “Last chance to save,” “Offer ends at midnight,” or “Hurry, limited spots available” signal to the reader that they need to act quickly to avoid missing an opportunity. For businesses relying on dropshipping suppliers, urgency can help move slow-selling inventory or highlight exclusive partnerships with top suppliers.

However, it’s important not to overuse urgency, as it can lose its effectiveness or come across as manipulative. Be honest about the time frame or availability of the offer to maintain trust with your audience. 

Moreover, urgency should align with the email's content, ensuring the reader is not misled or disappointed when they open the email.

Incorporating urgency also enhances the chances of readers prioritizing your email over others. When done right, it motivates recipients to engage with your email right away, increasing the likelihood of conversions and actions taken.

Use Personalization

Personalizing email subject lines is a powerful strategy to capture the attention of your audience. By making recipients feel like the message is tailored specifically to them, you increase the likelihood of them opening your email. 

Personalization can take several forms, ranging from using the recipient's name to referencing past interactions or behaviors.

Name or Location: Including the recipient's first name or even their location in the subject line can create a sense of familiarity and connection. For instance, “John, your exclusive offer awaits” feels more personal than a generic message. This small touch can make your email stand out in a crowded inbox.

Behavior-Based Personalization: If your email system is set up to track user actions (like previous purchases or browsing history), use that data to craft relevant subject lines. For example, “Still interested in that laptop you viewed?” can reignite a customer’s interest and prompt them to open the email.

Triggered Personalization: Using personalized subject lines based on a specific trigger can also be effective. For example, after a customer abandons their shopping cart, an email subject like, “Hey [Name], you left something behind!” addresses the issue directly and encourages the recipient to act.

Personalization makes recipients feel valued, increasing engagement rates and ultimately driving better results for your campaigns.

use personalization

Keep It Short and Sweet

In the world of email marketing, brevity is key. With the majority of emails being opened on mobile devices, subject lines need to be concise to make a strong impact within a limited space. Ideally, aim for 40-50 characters in your subject line. This length ensures that your message is visible in most inbox previews and avoids truncation, which is especially important on mobile screens.

By keeping it short, you also make it easier for recipients to quickly understand the main idea of the email. The first 3-5 words are the most critical, as they often appear in the inbox preview. Therefore, front-load your subject line with the most important information, whether it’s a benefit, offer, or key message.

Additionally, a short subject line can create a sense of clarity and focus. Instead of overwhelming the reader with excessive details, get straight to the point. This approach encourages recipients to click because they know exactly what to expect. Avoid using unnecessary filler words or complex sentences that could dilute the message.

Remember, being direct and precise shows respect for your audience’s time, which can significantly increase the likelihood that they’ll engage with your email.

Leverage Curiosity

Curiosity is a powerful psychological trigger that can significantly increase email open rates. When crafting subject lines, you want to spark just enough intrigue to make the recipient feel compelled to open your email and satisfy their curiosity. However, it’s important to strike the right balance — the subject line should be mysterious, but not too vague or misleading.

One effective way to leverage curiosity is by asking a thought-provoking question. For example, “Are You Making These Common Marketing Mistakes?” or “Want to Boost Your Productivity in 5 Minutes?” These types of subject lines prompt the reader to wonder what the email contains and how it might benefit them, encouraging them to click to find out more.

Another strategy is to hint at exclusive or unexpected content. Subject lines like “The Secret to Getting More Done in Less Time” or “This One Trick Changed My Career” make the reader feel like they’re about to discover something special or valuable.

It’s crucial, though, not to cross into clickbait territory. While curiosity can drive clicks, misleading subject lines can lead to frustration, higher bounce rates, and a loss of trust. Always ensure that your email content delivers on the promise made in the subject line to maintain credibility and engagement.

Highlight Value and Benefits

When crafting an email subject line, it’s crucial to focus on the value and benefits the recipient will gain by opening the email. People are more likely to engage with an email when they feel it offers something they truly need or want.

Your subject line should convey how the content inside will solve a problem, make their life easier, or provide a benefit.

For instance, instead of using a generic subject like “Check out our latest sale,” try something more specific, like “Save 20% on your next purchase—today only!” This type of subject line highlights the immediate benefit (the discount) and creates urgency (the limited-time offer). 

Similarly, focusing on convenience, exclusivity, or rewards can make a subject line irresistible. Words like “Free,” “Exclusive,” “Easy,” “Simple,” or “Guaranteed” trigger positive emotions and imply tangible value.

It’s important to be authentic when conveying value—don’t overpromise or mislead your audience. Your subject line should set realistic expectations about the content of the email, ensuring the recipient’s interest aligns with what you deliver.

By emphasizing benefits like time savings, financial rewards, or unique offers, you not only capture attention but also foster trust, increasing the likelihood of both opens and conversions.

A/B Testing and Optimization

A/B testing is essential for refining email subject lines and improving engagement. It involves comparing two variations of a subject line to see which one performs better.

By testing different subject lines, marketers can understand what resonates most with their audience and optimize future campaigns accordingly.

How to Conduct A/B Testing:

Create Variations: Craft two distinct subject lines that differ in one key element, such as tone, length, or the inclusion of a time-sensitive word.

Segment Your Audience: Split your email list randomly into two groups, ensuring that each group receives one of the subject line variations.

Monitor Metrics: Track open rates, click-through rates, and any other relevant metrics to determine which subject line performs better.

Refine and Iterate: Use the winning subject line for the remainder of your email list and continue testing new variations over time to keep improving.

Key Considerations:

Test One Element at a Time: Focus on one variable (e.g., using urgency versus highlighting value) to isolate the impact of that change.

Sample Size: Ensure your test group is large enough to yield statistically significant results.

Continuous Optimization: A/B testing should be an ongoing process, with continuous adjustments based on performance data.

By regularly A/B testing and optimizing subject lines, you can increase your email open rates, boost engagement, and build stronger connections with your audience. Learn A/B testing insights at a makerspace platform.

Avoid Common Mistakes

Crafting a compelling subject line is crucial, but it's equally important to avoid common mistakes that can turn off potential readers. Here are some pitfalls to watch out for:

Using All Caps: Writing your subject line in all caps can come across as aggressive or like you're shouting. It’s often seen as unprofessional and can trigger spam filters, reducing the chances of your email being delivered. Instead, use sentence case or title case for a cleaner, more approachable look.

Excessive Punctuation: Overloading your subject line with exclamation marks or question marks can make it appear spammy or desperate. Phrases like "Hurry!!!" or "Don't miss out!!!" might seem too pushy and can turn potential readers away. Stick to punctuation that enhances clarity rather than trying to create urgency through overstatement.

Misleading or Clickbait Titles: While it’s important to entice readers, using deceptive tactics to increase open rates is a mistake. If your subject line promises something that isn’t delivered in the email body, it can damage trust and lead to high unsubscribe rates. Always be honest about the content of your email to build long-term engagement.

Spammy Keywords: Phrases like “Free,” “Limited-time offer,” or “Guaranteed” are commonly flagged by spam filters. While these words may work in some contexts, be cautious and avoid overusing them to prevent your email from landing in the junk folder.

By being mindful of these mistakes, you can craft more effective and engaging subject lines that truly connect with your audience.

Conclusion

In conclusion, writing email subject lines that get clicked is both an art and a science. By understanding your audience and crafting subject lines that are clear, personalized, and benefit-driven, you can significantly increase your email open rates. 

The key is to balance intrigue with transparency—use curiosity to draw readers in while ensuring your subject line honestly reflects the content of the email. 

Additionally, creating a sense of urgency and personalizing the message can prompt immediate action, while keeping your subject line concise ensures it’s visible across devices. 

Testing and optimization play a crucial role in refining your approach, as monitoring performance allows you to tailor your strategy for maximum impact. While it’s essential to avoid common pitfalls like clickbait or spammy tactics, focusing on value and relevance will build trust and engagement over time. 

Email marketing success hinges on continuously experimenting and adjusting to what resonates best with your audience. With the right techniques, your email subject lines can stand out in a crowded inbox, compelling recipients to open and act on your messages.

 By applying these principles, you can transform your email campaigns into powerful tools for driving engagement and achieving your goals.

About the Author

author_image

Sharik Rasool, Digital Marketer

Sharik Rasool is a consultant specializing in software-as-a-service (SaaS) marketing and organic growth. He assists all sizes of businesses in achieving organic growth and acquiring customers through Search Engine Optimization (SEO) and Content Marketing strategies driven by data. In his free time, Sharik contemplates strategies for startup growth, personal productivity, and remote work.