Email marketing has been declared dead more times than we can count. And yet, year after year, it consistently delivers the highest return on investment of almost any digital marketing channel. For small businesses operating with tight budgets and limited time, that matters enormously.

This guide walks you through everything you need to know to start sending emails that people actually open, read, and act on.

Why Email Marketing Still Works

Unlike social media, where your posts are at the mercy of an algorithm, your email list belongs to you. When someone gives you their email address, they're inviting you into their inbox — that's a far more personal relationship than a casual follow on Instagram.

The numbers back this up. Email marketing averages an ROI of around £36 for every £1 spent. It reaches people directly, works across all age groups, and can be fully automated once you've set things up.

Building Your Email List

Your list is your most valuable marketing asset, so it's worth building it properly from day one.

Start with the people you already know: existing customers, past enquiries, and anyone who's signed up through your website. Add a simple sign-up form to your site — ideally in exchange for something useful, like a discount code, a free guide, or early access to new products.

Avoid buying email lists. It damages your sender reputation, often violates data protection laws, and simply doesn't work. Organic, permission-based lists always outperform purchased ones.

Choosing the Right Platform

You don't need expensive software to get started. Two platforms worth considering:

Mailchimp is ideal for beginners. It has a generous free plan, a drag-and-drop email builder, and solid automation features. It's straightforward enough to get your first campaign out the door without a steep learning curve.

Klaviyo is the better choice if you run an e-commerce store. Its integration with Shopify and WooCommerce is exceptional, and its segmentation and automation capabilities are best-in-class. It's slightly more complex but well worth learning.

Types of Emails to Send

Not every email should be a sales pitch. A good email strategy uses a mix of content types:

Newsletters — Regular updates that keep your audience informed and engaged without always asking them to buy something
Promotional emails — Announce sales, new products, or seasonal offers
Welcome sequences — Automated emails that go out when someone first joins your list, introducing your business and setting expectations
Abandoned cart emails — Essential for e-commerce: a gentle reminder to customers who added something to their basket but didn't complete the purchase
Re-engagement emails — Win back subscribers who haven't opened your emails in a while

Writing Subject Lines That Get Opened

Your subject line is the single biggest factor in whether your email gets opened or ignored. A few principles that consistently work:

Keep it short — ideally under 50 characters, so it displays fully on mobile. Be specific rather than vague. Create genuine curiosity without resorting to clickbait. And don't overlook the preview text (the line that appears after your subject line in the inbox) — it's essentially a second subject line.

Test different approaches by using your platform's A/B testing feature. Even small improvements in open rate compound significantly over time.

Measuring What Matters

The two core metrics to track are your open rate (what percentage of recipients opened the email) and your click rate (what percentage clicked a link). Industry averages vary, but a 20–30% open rate and a 2–5% click rate are solid benchmarks for small business emails.

Beyond those, watch your unsubscribe rate — a spike usually signals that you're either emailing too frequently or your content isn't relevant enough to your audience.

Getting Started: Your First Steps

1. Choose a platform and create a free account 2. Import your existing contacts (with their permission) 3. Set up a simple welcome email that goes out automatically to new subscribers 4. Plan a monthly newsletter — even a short, genuine update works well 5. Review your stats after each send and adjust based on what you learn

Email marketing rewards consistency. You don't need to send daily emails or produce elaborate designs. A short, honest, useful email sent regularly to people who actually want to hear from you will outperform a polished blast to a cold list every single time.

At Eurasia Marketing, we help small businesses in Hounslow and across West London build and manage email campaigns that deliver real results. Get in touch if you'd like to talk through your options.

The Beginner's Guide to Email Marketing for Small Businesses