The words that make a subject line sound like marketing
Spot vague promises, inflated claims and insider language that reduce curiosity before the email is opened.
You write a subject line, read it back, and it sounds less like an email from a person and more like a banner above a conference stage. “Unlock your potential.” “The ultimate solution.” “Transform your results.” Nothing is technically wrong with these words, but they give the reader very little reason to open this particular message.
The vague promise
Vague promises sound polished because they could apply to almost anything. “Grow your business”, “feel more confident” and “get better results” do not tell the reader what is inside the email. They describe a desirable destination without showing the next step. That makes the line easy to ignore: there is no detail to recognise and no question to answer.
| Sounds like marketing | More useful version |
|---|---|
| Unlock your full potential | The two-minute review I use before publishing a sales page |
| Take your content to the next level | Three places to cut repetition from your product description |
| Your ultimate guide to better launches | What to send seven days before your course opens |
| Transform your workflow | A simple way to separate client work from course updates |
The inflated claim
Some words make a subject line sound like marketing by promising an outcome larger than the email can reasonably support. Watch for “revolutionary”, “instant”, “guaranteed”, “effortless”, “life-changing” and “secret”. These words create a mismatch between expectation and delivery. If the email contains one useful example or a short checklist, calling it a breakthrough makes the reader work out what you are compensating for.
- Remove the claim and see whether the subject still has a clear subject.
- Replace “instant” with the amount of time the reader actually needs, if you know it.
- Replace “secret” with the thing you are willing to explain openly.
- Replace “guaranteed” with the condition that makes the advice useful.
- Keep a strong claim only when the email itself directly proves it.
The insider language
Jargon is not always complicated. It is simply language that makes sense to you because you work with the subject every day. Your reader may understand the individual words but still not know why they should open the email. “Optimise your acquisition funnel” is less inviting than “Find the page where new subscribers stop”. The second version gives them a problem they can recognise.
- 1Circle the words that describe your process rather than the reader’s situation.
- 2Write down what those words mean in ordinary language.
- 3Keep the term only if your audience uses it to identify a real problem or decision.
- 4Read the new version as someone who has not taken your course or joined your industry.
- 5Check that the subject still makes sense without the email preview text.
The words that hide the actual email
A subject line can sound promotional simply because it announces a format instead of an idea. “New blog post”, “important update”, “weekly newsletter” and “resources inside” tell the reader what kind of container you have sent, not what is worth opening. The fix is usually to name the useful thing inside the container.
Try this question: if you removed your name and logo, would the subject still give the reader a reason to care? “A note from me” depends on familiarity. “The sentence I removed from my checkout page” creates a small gap the reader may want to close. It is specific without pretending to be larger than it is.
A five-minute subject line edit
Before you send, write the plainest accurate description of the email. Then make it more recognisable, not more dramatic. Name the decision, example, mistake, question or small result that the reader will encounter after opening. If there are several ideas, choose the one that gives the email its reason to exist.
You can keep these edits in one place alongside your subscriber messages. With store.fan’s email marketing tools, a creator can build the email around the product, download or course they already sell from their storefront. The point is not to make every subject line sound casual. It is to make the promise accurate enough that the body of the email can fulfil it.
No. Shorter lines are easier to scan, but length is not the same as clarity. A longer subject can work when each word adds useful context. Cut repetition and filler first, then read the remaining line as a complete promise.
You can, but ask what they add. If removing the word leaves the subject clearer and more believable, remove it. If the word is part of a specific title your audience already knows, it may be doing a different job.
Read it without the sender name and imagine seeing it beside ten other emails. If it could describe almost any business, depends on a broad promise or uses terms your reader would not say themselves, make it more concrete.
If you sell downloads, courses, coaching or memberships, store.fan gives you a storefront for the offer and the email that helps people understand it. Paid plans start with a 14-day trial, and store.fan takes 0% of sales, while Stripe’s own processing fee still applies. Money goes straight to your Stripe account, so you can keep the wording and the selling process connected.
Set up a storefront for the things your emails help people buy.
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