Now onboarding businesses across Leeds & Yorkshire — book a free IT & security review
← All resources

Email Marketing for Small Business: Getting Started the Right Way

In short

Email marketing is one of the cheapest, most effective ways to keep customers coming back, but only if you do it properly. That means building your list with real consent under UK PECR rules, choosing a tool that fits a small business, and looking after deliverability so your emails actually land. This guide walks you through the basics without the jargon.

Some links on this page are affiliate links: if you sign up or buy through them, Dacros may earn a commission, at no extra cost to you. We only recommend tools we use and rate. Full disclosure.

Why email marketing still works

Social media comes and goes, but email quietly remains one of the most cost-effective ways for a small business to stay in touch with customers. You own your list, you reach people directly in their inbox, and you’re not at the mercy of an algorithm deciding who sees your posts.

The catch is that email marketing done badly is worse than not doing it at all. It annoys people, damages your reputation, and can land you on the wrong side of UK law. Done properly, it’s one of the best-value things a small business can do.

Here’s how to start the right way.

The single most important rule: only email people who genuinely want to hear from you.

This isn’t just good manners, it’s the law. In the UK, marketing emails are governed by PECR (the Privacy and Electronic Communications Regulations), which sits alongside UK GDPR. In most cases, PECR requires consent before you send marketing emails to individuals.

That means:

  • Never buy a list. Those people never agreed to hear from you. Bought lists breach PECR and wreck your deliverability.
  • Use clear opt-in. A tick box that isn’t pre-ticked, a sign-up form on your website, a genuine choice at the point of sale.
  • Keep a record of when and how someone opted in.
  • Be honest about what they’re signing up for and how often you’ll email.

A small list of people who genuinely opted in is worth far more than thousands of bought contacts.

There’s one useful exception worth knowing: the soft opt-in. If someone bought something from you and you collected their details during that sale, you can often email them about similar products or services, as long as you gave them a clear chance to opt out at the time and in every message since. It applies to existing customers only, not prospects.

If you’re ever unsure, the safe answer is simple: get clear consent. The ICO’s website has plain guidance on direct marketing if you want to check the detail.

Step 2: Choose the right tool

You don’t send marketing emails from your normal Outlook or Gmail account. You use a dedicated email marketing tool, and for good reason. A proper tool:

  • Handles unsubscribes automatically (a legal must-have)
  • Manages consent and records for you
  • Provides templates so your emails look professional
  • Improves deliverability so more emails reach the inbox
  • Shows you what’s working, opens, clicks and sign-ups

For small businesses, the things that matter most are ease of use, fair pricing on a small list, and — for UK companies handling customer data — sensible data hosting.

We often recommend MailerLite as a starting point. It’s straightforward for non-technical owners, reasonably priced for smaller lists, and hosts data in the EU, which many UK businesses prefer for peace of mind around data protection. There are other good options, but the principles are the same whichever you choose.

Step 3: Get the technical basics right (deliverability)

Here’s the part most guides skip: it doesn’t matter how good your email is if it lands in the spam folder. That’s deliverability, and it’s mostly about proving to the internet that you’re a legitimate sender.

The main pieces are three technical records on your domain:

  • SPF — says which servers are allowed to send email for your domain.
  • DKIM — adds a digital signature proving the email really came from you.
  • DMARC — tells receiving servers what to do with anything that fails those checks.

Don’t worry if that sounds technical, it’s a one-off setup, and your email tool will guide you (or we can do it for you). Getting it right is the difference between reliably landing in inboxes and quietly vanishing into spam.

Beyond the technical setup, deliverability comes down to good habits:

  • Keep your list clean. Remove addresses that bounce or never engage.
  • Don’t email people who didn’t opt in. Spam complaints hurt your reputation fast.
  • Make unsubscribing easy. People leaving quietly is far better than people marking you as spam.
  • Send consistently. A predictable rhythm builds trust with both readers and inbox providers.

Step 4: Write emails people actually want

Once the foundations are in place, keep it simple:

  • Give value, not just sales. Tips, news, useful updates, the occasional offer.
  • Write like a human. Plain, friendly, and to the point.
  • One clear action per email. Book a call, read a post, reply to you.
  • Pick a rhythm you can keep. Monthly is a sensible start for most small businesses.

Consistency beats cleverness. An honest, useful email once a month will do far more for your business than a slick one you send once and never repeat.

A quick word on data protection

Because you’re collecting and storing people’s contact details, email marketing involves personal data, so UK GDPR applies too. In practice that means: only collect what you need, keep it secure, tell people how you’ll use it (a short privacy note on your sign-up form), and let them opt out easily. A good tool handles most of this for you.

Getting started

Email marketing rewards businesses that do the basics properly:

  1. Build a list with genuine consent, never buy one.
  2. Pick a proper tool that manages consent and unsubscribes.
  3. Set up SPF, DKIM and DMARC so your emails get delivered.
  4. Send useful, consistent emails people are glad to receive.

Get those right and email becomes a dependable, low-cost way to keep customers coming back.

If you’d like a hand with the technical setup, especially getting your domain configured so emails actually land, that’s the kind of thing we help with as part of our managed IT services for businesses across Leeds and Yorkshire. Get in touch and we’ll point you in the right direction.

Frequently asked questions

Do I need consent to email people under UK law?

In most cases, yes. UK PECR rules, which sit alongside UK GDPR, generally require consent before you send marketing emails to individuals. There's a limited 'soft opt-in' exception for existing customers who bought something similar from you and were given a clear chance to opt out. When in doubt, get clear consent, it keeps you safe and builds a better list.

Can I just buy an email list to get started?

No, please don't. Bought lists almost always fall foul of UK PECR because those people never consented to hear from you. They also wreck your deliverability, as spam complaints and dead addresses damage your sender reputation fast. A small list of people who genuinely opted in is worth far more than thousands of bought contacts.

What is the 'soft opt-in'?

It's a narrow exception in PECR. If someone bought a product or service from you, and you collected their details during that sale, you may be able to email them about similar things, provided you gave them a clear chance to opt out at the time and in every message since. It only applies to existing customers, not prospects, and only for similar products.

Why do my emails end up in spam?

Usually it's a deliverability problem, not your content. Common causes are missing technical setup (SPF, DKIM and DMARC records that prove you're a legitimate sender), emailing people who never opted in, or a list full of dead addresses. A good email tool plus proper domain setup fixes most of it. We can help get the technical side right.

How often should I email my list?

Consistency matters more than frequency. Pick a rhythm you can genuinely keep up, monthly is a sensible starting point for many small businesses, and stick to it. Emailing too often leads to unsubscribes; emailing once a year means people forget who you are. Always give real value, not just sales pitches.

Do I legally need an unsubscribe link?

Yes. Every marketing email must include a clear, easy way to unsubscribe, and you must honour those requests promptly. Any reputable email tool adds this automatically. Making it easy to leave actually helps you, it keeps your list healthy and your sender reputation strong.

Who writes this

Dacros — led by Jordan Gilbert

Our guides are written and checked by the Dacros team, led by founder Jordan Gilbert. We run the IT and cyber security for UK small businesses — and hold our own systems to the same standard. About Jordan · About Dacros.

Want this handled for you?

Dacros runs the IT and security for UK small businesses. Book a free review and we'll tell you what's worth doing — no jargon, no pressure.