Most marketing emails want you to buy something and that’s fine, it’s why they exist. But if every email you send is a promotion, a sale or a product push, you’re missing an opportunity to do something more valuable: become genuinely useful to your subscribers.
Content marketing in email isn’t a new idea but it remains one of the most underused strategies available, particularly in B2C. The brands that do it well don’t just sell to their subscribers, they give them a reason to engage with the next email.
Content builds what promotions can’t
Promotions drive transactions. Content builds loyalty. It’s a distinction that matters because customer lifetime value is difficult to grow through promotional email alone. Inboxes are full of offers, discounts and limited-time deals. Standing out in that environment by being genuinely useful is more durable than trying to out-promote the competition as well as being better for your margins.
Helpful, informative or entertaining content makes subscribers feel good about your brand. Trust increases, they engage more and when they’re ready to buy they’re more likely to think of you first. Content marketing is a long-term strategy and the compound effect on loyalty and lifetime value shouldn’t be underestimated.
What useful looks like
The most common design focus is that emails should be clean, clear and simple with an obvious call to action. That’s true for a sales email but it’s not a universal rule. It depends on what you’re trying to achieve.
I think there’s an argument that says if people want to read something, it doesn’t matter if it’s in an email or on a website – especially if we’re reading on our phones. Not that emails should be essays – an introduction or summary linking to the full story on a website or app can provide a good balance.
Useful content in email can take many forms depending on your sector and audience:
A fashion brand can go beyond product grids to offer styling guides, seasonal look books or advice on how to wear a specific piece. Context brings the product to life in a way that a price and a buy button can’t.
A travel or hospitality brand can do more than show images of destinations and prices. Information about a location – its history, culture, things to do, lesser-known attractions – helps build anticipation and gives subscribers a reason to read rather than scroll.
A B2B brand can use email to share industry insight, practical guidance and real-world stories that positions them as a trusted partner rather than just a supplier.
A retailer can show customer reviews, how-to guides, product care advice or behind-the-scenes content to create a connection beyond the transaction.
The common thread is usefulness. Content that helps, informs or entertains creates a different kind of engagement than content that simply asks us to buy.
Of course, AI is now involved
The take up of AI tools to generate content ideas, images and write copy has been nothing short of remarkable.
Never has it been more critical to remind ourselves that human ideas, imagination and tone should prevail as the amount of content made using AI increases. There’s a growing backlash against blatant AI output, particularly amongst younger age groups.
Whilst AI makes it easier than ever to produce content quickly and at high volumes, if it sounds like it could have been written by anyone – or worse, like it was written by the same tool every other brand is using – it loses the distinctiveness that resonates with us and how we live.
Your brand voice, perspective and expertise borne from experience are what makes content worth reading. Use AI as a tool to support that, not replace it – ‘slop’ is obvious, strikes of laziness and is homogenous.
And don’t use AI to write an email marketing brief. That makes it even tougher to translate your message into a unique, brand-voiced email providing content designed to enhance the human experience. Bear in mind that AI needs detailed guidance and is always backwards looking.
Content marketing is for life, not just for…
Content marketing only works as a sustained effort. A single well-crafted email with great content followed by months of promotions won’t build the habit of engagement you’re looking for. Consistency is what creates the expectation that your next email will be worth opening.
This requires planning. An editorial calendar, a content pipeline and ideally a budget to resource it properly. Working at least a quarter ahead gives you the breathing room to produce content thoughtfully rather than reactively. It also lets you align content themes with key trading periods, seasonal moments or product launches in a way that feels natural rather than cobbled together in a hurry.
Yes, there will be changes along the way – there always are but having 80% to 90% of what you need in advance is a big advantage, not least in terms of our sanity because of the time pressures we all work with these days.
Start with what you already have. Most brands are sitting on more usable content than they realise — website copy, product information, blogs, customer reviews, social media posts, staff knowledge and expertise. Repurpose and adapt before creating new content from scratch.
Come closer baby
The best content marketing doesn’t broadcast, it invites. Build in ways for subscribers to engage beyond clicking through: surveys, preference centres, review requests and questions that invite a reply. It may help to be selective here by choosing small groups that focus on particular purchases.
The more your subscribers interact across your marketing channels the more data you have to make the next email more relevant and the stronger the relationship becomes.
Track what performs. Which content types get clicked? Which topics drive the most engagement? Let your subscribers tell you through their behaviour to determine what to include more of going forward.
Better together
Done well, content marketing in email transforms the relationship between brand and subscriber. Instead of something to be tolerated or filtered out, your emails become something worth reading – a regular source of value that builds trust, reinforces loyalty and keeps your brand memorable before the next purchase decision.
It’s a harder thing to build than a promotional calendar but it’s also a harder thing for your competitors to copy.

