Write Strong Email Subject Lines to Boost Your Open Rate

Why are Subject Lines Important?

  1. They Offer Value. The best subject lines communicate the promise of value. Your subject line must assure the recipient that the email contains information or messaging that will improve their lives and/or their businesses.
  2. They Pique Interest. Subject lines must be interesting and unique. Forget about using clichés and try to give your audience something that captures their attention and pushes them to open the email. Also, make sure that your subject line doesn’t have spelling or grammar errors.

Types of Email Subject Lines

Subject Lines Referring to Numbers & Lists

  • 10 Celebrities Who Have Been Ruined by Plastic Surgery
  • The 8 Most Annoying Moments of the 2020 Oscars
  • 7 Jaw-Dropping Drift Videos on Youtube
  • Join More than 500 Others at This Event!
  • 5 Things You Should be Doing Every Morning
  • Peter, Only 4 More Days Left…
  • 60% Off Sale Ends Today! Hurry, This is Your Last Chance…
  • Uh-oh, Your Prescription is Expiring
  • I Hate to Say No, But Today Really is Your Last Chance
  • Your Time is Running Out Candice…
  • Why Your 6-Year-Old Is More Digital Than Most CFOs
  • 4 Tech CEOs That Need to Resign Immediately
  • Your Marketing Sucks: Why You Need to Think Local
  • Everything You’ve Ever Heard About This Food is Wrong
  • I Don’t Want You to Come to My Event

Best Practices for Subject Lines

  • Always use “you” and “your”. Your readers need to feel like you are speaking to them individually.
  • Say “Yes” to alliteration. Alliteration is when you use the same letter or sound to start several words in a sentence. For example: An ample amount of alliteration attracts! Give alliteration a try to come up with catchy email subject lines.
  • Put yourself in the “from” field. Research shows that 86% of email recipients say that the “from” name matters. Keep your “from” section professional and consistent for business subject lines. Most business emails use their brand name in the “from” field or go with something like “John Smith from Everlytic”.
  • Always A/B test subject lines. It’s best practice to A/B test your email subject lines since this testing technique will enable you to make data-driven decisions and ensure a positive impact.
  • Pay attention to the preview. Some email clients have a built-in preview pane that shows readers an intro to the email — and in Everlytic, you can customise it. Use your preview text to support your subject line and increase your open rate.



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Marketing automation software that enables data-driven and hyper-personalised communication via email and SMS.