Crafting Irresistible Email Subject Lines with

May 15, 2024
5 min read

Your audience is judging your email subject lines. Did you know that 47% of marketers in 2022 test different email subject lines to optimize their emails' performance and increase click-through rates? While you may consider subject lines a small part of your message, they are often your only chance to stand out in a crowded inbox. This blog post will share some tried-and-true tips to help enhance your subject lines and boost your email engagement.

Best Practices for Email Subject Lines

Grab Attention

Your email subject line is a mini advertisement for your content. To stand out in the inbox, you need to instantly grab your audience's attention. This could be through a catchy piece of copy, including the recipient's name in the subject line, or using pictorial additions like emojis to help separate your business’ subject line from the rest of the inbox.

Convey Relevance

Email subject lines should offer information that is relevant to the recipient and hint at the content they can expect to find if they open your email. Subject lines that speak to the value or relevance of a product are especially effective for emails meant to drive customers to a product.

Create Curiosity

Email subject lines should pique your audience's interest. You want to grab their attention, but you also want to make them curious. The goal is to provide a tantalizing taste that makes them decide whether they want to invest their time in reading further.

Drive Action

Think about the main goal and call to action of your email campaign. What action do you want your audience to take once they've read your email? Make sure your subject line is clear about your business's desired action.

Create a Sense of Urgency or Exclusivity

Creating urgency in your subject line captures your audience's attention and encourages them to open your business’ email immediately. Crafting an exclusive air in your subject line can promote feelings of specialty.

Personalize When Possible

People respond best when they feel communication is personal. Use dynamic fields to auto-populate your subject lines with the recipient's name to grab their attention.

Use a Familiar Sender Name

Your audience is more likely to open emails from a sender name familiar to them. Selecting a regularly occurring sender name to represent your business can help build trust with your audience, increasing their likelihood of opening.

Tips to Create Good Email Subject Lines

Keep It Short and Snappy

With nearly 50% of all emails now opened on mobile devices, shorter subject lines are more effective. Most mobile email clients will only display around four or five words before your subject line is cut off. Therefore, it's important to make your subject line pop in those first few words.

Avoid Spam Words in Your Email Subject Lines

With 333 billion emails sent and received every day around the world, standing out from spam is increasingly difficult. Avoid spammy words or phrases to ensure your emails are not flagged as spam.

  • Specific word choice (#1, 100% satisfied, bonus, certified, cheap, join millions, etc.)
  • Messages in ALL CAPS
  • Emails without an unsubscribe button
  • Colorful, hard to read, and different sized fonts

Ask Open-Ended Questions in the Subject Line

Asking a question in your email subject line is a great way to pique your audience's interest and curiosity.

"Hi Tosan, do you want 20% off your next order? "

"How do your results compare to the competition?"

Include a Deadline in the Subject Line

Including a deadline in your subject line creates a sense of urgency that can encourage readers to prioritize your email.

"FINAL HOURS 25% off ECLIPSE Flash Sale"

Tell a Joke with Your Email Subject

If you can write a funny subject line, you’re going to get a lot of attention.

“Don’t open this email… Just kidding, you totally should!”

“Oops, We Found Your Secret Dancing Video!”

“Your Boss Approved Extra Nap Time!”

Say Something Unexpected or Intriguing

Sharing something unexpected encourages your subscribers to open your email.

How The Basketry does it: “Join us for a Bling-ing good time”

A/B Test Your Subject Lines

Always test your subject lines and measure their performance and impact. By split-testing your email campaigns, you can identify what works best and tweak your subject lines accordingly to get the best possible performance from your campaigns.

Overcome Writer’s Block with

Struggling to come up with variations? AI is a great solution. If you're seeking a method to elevate any email subject line, meet This cutting-edge tool employs advanced GPT-3.5, GPT-4, and Claude 2 technology to assist you in crafting the perfect subject line that will set your campaigns apart from the rest.

The key to making AI guess your thoughts is to provide it with sufficient basic information. The more detailed and comprehensive the information you provide, the higher the relevance and accuracy of the output results.

To get better output results, you need to provide brand information, or product information, especially if the email marketing campaign is geared towards a specific product. The theme of the email marketing campaign also plays a significant role, whether it's about quarterly discounts, surveys, or new product introductions. Furthermore, identifying the target audience for the email marketing campaign is equally important, such as women aged 35+ interested in the brand, historical buyers, or VIP customers.

Five subject lines will be generated for you to choose from and test all at once.

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