Email Subject Lines That Improve Open Rates

Aug 22, 2026 |
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Email Subject Lines That Improve Open Rates

Learn how course creators can write better email subject lines that improve open rates while staying clear, honest and relevant.

How to Write Email Subject Lines People Want to Open

We know why emails are important for our students, we also have now committed to writing a series of emails to keep that connection with our list but how do we get that ever-sought-after open rate up and more importantly that person to engage with our emails?

Quick answer: what email subject lines improve open rates?

The best email subject lines are clear, specific, relevant, and connected to a real reason to open now. For course creators, strong subject lines usually promise a useful lesson, a timely offer, a student outcome, a personal story, or a direct answer to a problem your audience already cares about.

Avoid clickbait, all caps, misleading urgency, and vague phrases. Open rates improve when your list trusts you, your emails arrive consistently, and the subject line accurately matches the content inside.

To get you started here are some ideas that you can combine into your broadcast emails that your subscribers will want to open.

I have talked about the types of emails you can send this helps with the content within an email,  In this post I will give you the subject line so all you have to do is fill in the blanks and test the results.

  1.  Limited Time Offer: Save XX% on [Product/Service Name]!" This title creates a sense of urgency and exclusivity, making subscribers feel like they don't want to miss out on a great deal
  2. "Introducing [New Product/Service Name] – Get Yours Today!" People love new things, and introducing a new product or service can pique their interest and encourage them to open the email.
  3. "[Name], You Won't Believe What We Have for You..." This title is intriguing and makes subscribers curious about what you have to offer. It creates a feeling of anticipation and excitement.
  4. "Get Exclusive Access to [Benefit or Content] – Only for Our Subscribers!" Everyone loves feeling special and getting exclusive access to something. This title makes subscribers feel like they are part of a select group.
  5. "Last Chance to [Take Advantage of an Offer or Sign Up for an Event]!" This title creates a sense of urgency and encourages subscribers to act quickly before it's too late. It can be particularly effective for time-sensitive promotions or events.

Remember to keep your email titles short, clear, and specific to the content of the email. Also, avoid using all caps or spammy language, as these can hurt your credibility and reduce your open rates.

Obviously, 5 is not enough so here are some more for you. 

  1. "5 Tips for [Solving a Problem or Achieving a Goal]" Offering tips or advice on a topic of interest to your subscribers can be a great way to add value to your email content and build a relationship with your audience.
  2. "Join Our Community: [Name of Community or Group]" If you have a community or group that your subscribers can be a part of, this title can encourage them to join and engage with your brand on a deeper level.
  3. "Get Inspired: [A Topic or Theme]" This title can introduce a piece of content, like a blog post or video, that provides inspiration or motivation to your subscribers. People are often drawn to content that helps them feel inspired or motivated.
  4. "Behind the Scenes: [A Sneak Peek into Your Business or Process]" This title can give subscribers an exclusive look into how your business operates or how you create your products/services. It helps to build transparency and trust with your audience.
  5. "Ask the Expert: [Interview with an Industry Expert or Influencer]" This title can introduce an interview with a well-known expert or influencer in your industry. It can help to position your brand as knowledgeable and connected within your industry.

Test a few of these ideas and watch how your audience responds, remember to make your emails relevant and not too long with a call to action in each one.

This is only a handful to get you going, these have all been used with great success the key is to make sure your subscribers are engaged and that won't happen if you only email them once a year or when you want to sell something

Look out for my next blog post that will help you decide on how often you should be emailing your list. 

Keep your emails useful, consistent, and connected to the next step you want your reader to take.

Related New Zenler guides for email marketing

FAQ

What makes a good email subject line?

A good subject line is clear, relevant, specific and gives the reader a reason to open without misleading them.

How can course creators improve email open rates?

Improve open rates by writing relevant subject lines, segmenting the audience, sending useful content and building trust before promotional emails.

Should email subject lines be clever or clear?

Clear usually wins. Clever subject lines can work, but they should still help the reader understand why the email matters.

Categories: : Course Marketing

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