Good email copy does not need to be clever. It needs to be clear enough that a busy person, skimming their inbox on their phone, immediately understands what the email is about and why they should care. Most of what separates strong email copywriting from forgettable email copywriting is about removing friction, not adding polish or clever wordplay that sounds nice but slows the reader down.
Quick answer: Write subject lines under 50 characters, open with the point, keep paragraphs short, use one call to action, and sound like a person, not a press release. Test real variations instead of guessing.
Write Subject Lines That Earn the Open
Every list of email copywriting advice should start here, since a great email is worthless if it never gets opened. The subject line’s only job is to get the email opened, and research on email opens has repeatedly found that a large share of recipients decide whether to open based on the subject line alone, before reading anything else about the email. Keep it under roughly 50 characters so it does not get cut off on mobile, and make it specific rather than vague. "Your cart is waiting" tells a reader nothing new. "Still thinking about the jacket in your cart?" references something real and performs better because it feels written for that specific shopper.
- Be specific about what’s inside the email
- Avoid words that commonly trigger spam filters, like "free" in all caps or excessive punctuation
- Test two versions when volume allows, rather than assuming which one wins
Write in Your Audience's Own Language
Generic copy uses generic words. A store that sells running shoes and writes "high-quality footwear for your active lifestyle" sounds like it could be selling anything. A store that writes about "shaving seconds off your 5K" or "the last mile when your legs are done" sounds like it actually understands runners. Every niche has its own vocabulary, the specific words its actual customers use to describe the problem your product solves, and borrowing that vocabulary directly into your copy signals familiarity in a way generic marketing language never can.
This doesn’t require formal research. Reading your own product reviews, support tickets, and social comments for recurring phrases customers use unprompted is usually enough to build a working list of language worth echoing back in your emails.
Open With the Point, Not a Slow Lead-In
Most people decide whether to keep reading within the first line or two. Opening with a generic pleasantry or a long setup wastes that attention. Get to the point immediately: what this email is about, and why it matters to the reader specifically, not the brand sending it.
Compare:
- Slow: "We hope this email finds you well. We wanted to reach out today to share some exciting news about our latest collection."
- Direct: "Our new collection just landed, and three pieces are almost sold out already."
The second version gives the reader a reason to keep reading in the first sentence instead of the third paragraph.
Write for Skimming, Not Reading
Most people scan an email rather than read it word for word, especially on mobile. Short paragraphs, generous white space, and one idea per paragraph make an email easier to skim without losing the message. A wall of text, even a well-written one, gets skipped far more often than short, scannable blocks, no matter how good the actual sentences are.
- Keep paragraphs to 1 to 3 sentences
- Use bullet points for lists instead of burying items in a paragraph
- Bold sparingly to highlight the single most important detail, not every other phrase
Use One Clear Call to Action
An email with three or four different links competing for attention usually converts worse than one with a single, obvious call to action. Decide on the one thing you want the reader to do (shop the sale, read the guide, use the code) and build the entire email around that single action.
If there are multiple things worth mentioning, put the primary action first and prominently, and let secondary links exist further down the email without competing visually with the main button.
Write Like a Person, Not a Press Release
This shift alone fixes more weak copywriting than any other single tip. Copy that sounds like a corporate announcement ("We are pleased to announce our newest product line") creates distance between the brand and the reader. Copy that sounds like a person talking directly to another person tends to build more trust and get more clicks, even when the underlying offer is identical.
A simple test: read the email out loud before sending it. If it sounds like something you would actually say to a customer in person, it is probably working. If it sounds like a press release, it likely needs a rewrite.
What Copywriting Actually Means for Email
If you’re wondering what is copywriting in the context of email marketing specifically, it’s the practice of writing persuasive, benefit-focused text meant to move someone to a specific action, whether that’s opening, clicking, or buying. General copywriting principles (clarity, one idea per message, a clear call to action) apply just as much to email as they do to ads or landing pages. Looking at real copywriting email examples from brands you personally open and click is one of the fastest ways to absorb what actually works, faster than any single rule on this list.
How to Actually Test Your Copy
Most stores guess at what copy works instead of testing it, which means they never build a real, evidence-based sense of what their specific audience actually responds to. A simple testing habit fixes this over time.
- Test one variable at a time. Changing the subject line, the opening line, and the call to action all in the same test makes it impossible to know which single change actually caused the difference in results.
- Wait for a meaningful sample size. A test that only reaches 200 people rarely produces a result you can trust. Larger sends can usually detect a real difference with a few thousand recipients per variant.
- Track clicks, not just opens. A subject line can win on open rate while the body copy underneath fails to convert any of those extra opens into clicks, which means the real test result is what happens after the email is actually opened and read.
- Keep a simple log of what won and why. Over a dozen tests, patterns emerge, like your audience consistently responding better to direct language over clever wordplay, that are more useful long-term than any single test result taken on its own.
This doesn’t need to be complicated or run on every single send. Testing your highest-volume campaigns, like weekly newsletters or abandoned cart sequences, a few times a quarter builds a real, evidence-based sense of what your specific audience responds to, rather than copying tactics that worked for someone else’s list and hoping they translate directly to yours.
Key Takeaways
- Keep subject lines under roughly 50 characters and make them specific, not vague
- Use your audience’s own vocabulary, pulled from reviews and support tickets, instead of generic marketing language
- Open with the point in the first line instead of a slow, generic lead-in
- Write short, skimmable paragraphs with one idea each
- Build the email around a single, clear call to action instead of competing links
- Write in a natural, conversational voice rather than corporate, press-release language
- Study real copywriting email examples from brands in your own category
- Test one variable at a time, and wait for a meaningful sample size before trusting the result
Final Thoughts
Strong email copywriting is less about clever wordplay and more about respecting how little time a reader actually gives your email. Clear subject lines, a direct opening, and one obvious next step will outperform polished but vague copy almost every single time. For more on subject lines specifically, Adflipr’s subject line generator can help test variations quickly, and our guide on email marketing tips to increase sales covers the campaign structure around this copy. For more ideas on which campaigns to put this copy into, our roundup of email marketing campaign examples is a good next stop to browse.
FAQs
Keep it under roughly 50 characters so it doesn’t get cut off on mobile inboxes, while staying specific about what’s actually and genuinely inside the email.
Yes, in most cases. A single, clear action converts better than an email competing for attention across multiple different links.
Read it out loud. If it doesn’t sound like something you’d say to a customer directly in person, rewrite it in a more natural, conversational tone.
Keep most paragraphs to 1 to 3 sentences so the email stays easy to skim, especially on mobile devices where screen space is limited.
Copywriting is the practice of writing persuasive, benefit-focused text meant to move a reader toward a specific action, like clicking or buying.
Look at brands in your own category and pay attention to the specific emails you personally open, read fully, and click.
Burying the main point under a slow introduction. Most readers decide whether to keep reading within the first line or two of any email.
Just one at a time. Testing the subject line, opening line, and call to action together makes it impossible to know which change caused the result.
Larger sends can usually detect a real difference with a few thousand recipients per variant. Tests under a few hundred recipients rarely give reliable, repeatable results.
A large share of recipients decide whether to open based on the subject line alone, which is why it deserves as much attention as the body copy.
Read your product reviews, support tickets, and social comments for phrases customers use unprompted, then echo that language back in your copy.
