Most business email newsletters get deleted before they’re read. Not because email doesn’t work, but because too many newsletters are written for the sender rather than the reader. Here’s how to make sure yours ends up in the second category.
Why Email Newsletters Are Worth Your Time
Email is one of the most cost-effective marketing tools your business has. The Data and Marketing Association’s Email Benchmarking Report 2025 found that UK email delivery rates hit 98% in 2024 and average open rates reached 35.9%. Those aren’t the numbers of a dying channel.
UK businesses see a return of around £38 for every £1 spent on email marketing. No other digital channel consistently comes close to that. And unlike a social media post that disappears within hours, a newsletter arrives directly in your subscriber’s inbox. They’ve already said they want to hear from you. That’s a rare and genuinely useful position to be in.
Step 1: Get Your Subject Line Right
The subject line is the only thing most people see before deciding to open or delete your email. Get it wrong and nothing else matters.
Keep it short and specific. “5 things to check before your software renewal” will always outperform “Newsletter, June 2026.” People open emails that feel relevant to their situation right now. Avoid vague phrases like “exciting news” or “important update.” They say nothing, and they feel impersonal.
A subject line that hints at a specific benefit or poses a direct question gives someone a reason to click. If your email platform allows it, test two different subject lines on the same send. Split your list in half, send version A to one half and version B to the other, then look at which gets more opens. Even small changes in subject lines can shift open rates by 10 to 30 per cent.
Step 2: Write Content Your Readers Actually Want
The biggest mistake businesses make with newsletters is writing about themselves. Product updates, company news, awards, new staff. Most subscribers don’t care about any of that.
What they care about is what helps them. A practical tip they can use today. A question answered clearly. A problem solved. One genuinely useful piece of content will always outperform three paragraphs of self-promotion. Think about the questions your clients ask you most often, and write a newsletter that answers one of them well. That’s a better starting point than most businesses use.
Good newsletter content can also feed your wider content marketing strategy. A well-received newsletter article often makes an excellent blog post, and a strong blog post can become the foundation for your next send. The two work well together.
Step 3: Get the Structure Right
A clear, consistent structure helps readers know what to expect. It also makes your newsletter easier to write every time.
Most business newsletters work well with a short intro of two or three sentences, one main piece of content (an article, a tip, or a short guide), a brief update if you have something relevant to share, and a single call to action. That last part matters more than people realise. If you ask readers to do five different things, they’ll do none of them. Pick the one action you most want them to take and build your newsletter around that.
Keep paragraphs short. People scan newsletters quickly. If your content looks dense on screen, a lot of it won’t get read at all.
Step 4: Timing and Consistency
Consistency matters more than frequency. A newsletter that arrives on the second Tuesday of every month builds trust and expectation. One that shows up randomly, whenever someone remembers to write it, builds neither.
For most UK B2B businesses, a fortnightly or monthly newsletter is the right cadence. It keeps you present without becoming background noise. B2B emails generally perform better sent on Tuesdays, Wednesdays, or Thursdays. Morning sends tend to outperform afternoon ones for open rates. These are useful starting points, but your own data will tell you far more. Look at your open rates by day and time after a few sends, and adjust from there.
Step 5: Stay on the Right Side of UK Law
UK GDPR and PECR require clear, active consent before you send marketing emails to individuals. People must have deliberately opted in. A pre-ticked box does not count, and neither does a past purchase on its own.
Every newsletter must include an obvious, working unsubscribe link. This is a legal requirement, but it also keeps your list clean. A smaller list of people who actually want to hear from you will always outperform a large list of people who don’t. Your deliverability and open rates will both be better for it.
The Information Commissioner’s Office (ICO) has full guidance on email marketing consent if you’re unsure whether your current sign-up process is compliant. It’s worth checking before you send another campaign.
Step 6: Track What’s Actually Working
Most email platforms show you open rates, click rates, and unsubscribe numbers after every send. Look at them regularly, not just after campaigns you think went well.
The DMA’s 2025 benchmarks put the UK average open rate at 35.9%. If you’re consistently below 20%, your subject lines or list quality may need attention. If your click rate is low despite decent opens, your content or call to action may need work. Don’t react to a single poor send. Look at trends over several months. One low-performing newsletter doesn’t mean the channel isn’t working for you. The pattern is what matters.
If you want to connect your email performance to a wider SEO and content strategy, the traffic from newsletter click-throughs to your website can also give you useful data on which topics your audience responds to most.
Frequently Asked Questions
How long should a business email newsletter be?
Most newsletters perform best at 200 to 500 words. Long enough to say something useful, short enough to respect your reader’s time. If you have more to cover, link to the full article on your website and keep the newsletter to a clear summary with a reason to click through.
Do I need consent to send marketing emails to people in the UK?
Yes. UK GDPR and PECR require that people on your list have actively opted in to receive marketing emails from you. Pre-ticked boxes and implied consent from past purchases do not meet the legal standard. Every email must also include a clear, working unsubscribe option.
What is a good open rate for a UK business newsletter?
According to the DMA’s Email Benchmarking Report 2025, the UK average is 35.9%. If your open rate is consistently above 30%, your subject lines are doing their job. Below 20% consistently may point to subject line issues, a stale list, or a sender reputation worth investigating.
What should I actually include in a business newsletter?
Keep it simple: a useful piece of content relevant to your readers, a short introduction, and one clear call to action. Optional additions include a link to a recent blog post, a brief company update, or a short case study. Newsletters that try to cover six topics at once rarely perform well.
How do I grow my newsletter subscriber list?
Offer something genuinely useful in exchange for signing up: a practical guide, a free resource, or tips people can’t easily find elsewhere. Add a sign-up form to your website and promote your newsletter through your social media channels. Never buy email lists. The people on them haven’t consented to hear from you, your open rates will drop, and your sender reputation will take a hit that’s hard to recover from.
How do I know if my newsletter is actually working?
Check your open rate, click-through rate, and unsubscribes after every send. Open rates show whether your subject lines are landing. Click rates show whether your content is engaging. A spike in unsubscribes after a specific send is useful feedback. Give it three to six months before drawing firm conclusions about whether the channel is working for your business.
A Good Newsletter Is Simpler Than You Think
A business email newsletter doesn’t need to be long, polished, or particularly clever. It needs to be consistent, useful, and written for the person reading it rather than the person writing it. Get those three things right and your newsletter will do more for your business than most costly marketing campaigns.
If you want support with your email or digital marketing strategy, get in touch with the team at UK IT Services. We work with UK businesses to build marketing that actually gets results.