Email marketing is still the digital marketing channel with the highest return: according to various studies, every euro invested in email marketing brings back an average of 30–40 euros. Unlike social media, your email list belongs to you, not the platform – Facebook’s algorithm can cut your organic reach to zero tomorrow, but nobody can take your contact database away. In this guide, we walk step by step through how to get started with email marketing in 2026: growing your list, choosing a tool, automations, GDPR requirements and the numbers to measure.
What is email marketing and why does it still work?
Email marketing is ongoing communication by email with a contact database collected with permission – newsletters, automated email sequences, offers and transactional emails. It works for three simple reasons:
- Ownership. The list is your asset. Social media followers live on “rented land” – the channel’s rules and reach can change overnight.
- Intent. Someone who gave you their email address has already shown interest. That’s a warmer contact than a cold ad viewer.
- Measurability. Every email gives you clear numbers: opens, clicks, unsubscribes, sales. Testing and improving is easy.
In the age of AI search, an email list has one more bonus: as more and more people get their answers from ChatGPT or Google’s AI Overviews and never reach your website, a direct channel into the customer’s inbox is one of the few that no intermediary filters.
B2B vs. B2C email marketing – what’s different?
The principles are the same, but the emphasis differs:
- B2C (online stores, consumer services): emotion and timing. What works: abandoned cart emails, personalized recommendations, seasonal campaigns and loyalty discounts. Sending frequency can be 1–3 emails per week.
- B2B (services and products for businesses): trust and expertise. What works: educational newsletters, case studies, webinars and a longer “warm-up sequence” before the sales pitch. Sending frequency is more like 1–2 emails per month, but consistently.
If you have an online store, email marketing is practically mandatory – the abandoned cart automation alone typically earns 5–15% in additional revenue.
How to grow your email list (without buying one)
The most important rule: never buy email lists. A purchased list violates GDPR, kills your sender reputation and delivers next to nothing. Use lead magnets instead:
- a free guide, checklist or calculator that solves a specific problem for the customer;
- a discount code or free shipping on the first order (a B2C classic);
- a webinar or email course (the B2B gold standard);
- a free audit or consultation – for example, Marketing Sharks’ free digital marketing audit;
- a newsletter signup form next to blog articles (“get new guides straight to your inbox”).
Ask for as little as possible in the form: an email address and first name is usually enough. Every extra field reduces the number of signups.
Which email marketing tool should you choose?
For beginners, the right tools are the ones where a free or cheap plan covers the first steps:
- MailerLite – simple, affordable, a popular choice on the Estonian market; free up to 1,000 contacts.
- Brevo (formerly Sendinblue) – priced by the number of emails, not contacts; includes SMS and automations.
- Klaviyo – the most powerful option for online stores (especially Shopify/WooCommerce), but pricier.
- Smaily – an Estonian tool with Estonian-language support.
- ActiveCampaign / HubSpot – deeper integration with your B2B sales pipeline and CRM, if the budget allows.
Three things matter when choosing: whether automations are included in your plan, whether the tool integrates with your website or online store, and whether deliverability is good. Switching tools later is a hassle but not impossible – don’t get stuck on this decision.
Three automations to start with
An automation is an email sequence that triggers on its own and makes money even while you sleep. Start with these three:
- Welcome sequence (for everyone): 2–4 emails to a new subscriber – who you are, what they’ll get from your emails, your best content and a soft call to action. Welcome sequence open rates are typically 2–3 times higher than a regular newsletter’s.
- Abandoned cart (B2C/online store): 1–3 emails within 1–24 hours of the cart being abandoned. A simple reminder + a small incentive if needed.
- Warm-up or nurture sequence (B2B): 3–5 educational emails to whoever downloaded the lead magnet, building trust, and only then a sales offer or an invitation to a consultation.
GDPR and Estonian law – what you need to know
Email marketing in Estonia has to comply with GDPR and the Electronic Communications Act. The minimum you need to meet:
- Consent: the person must have given clear consent to receive emails (the checkbox must not be pre-ticked). You can send offers for similar products to an existing customer on the basis of legitimate interest, but the option to opt out has to be there from the start.
- Unsubscribe link: the footer of every email must contain a working, simple unsubscribe link.
- Sender identification: the email must make clear who the sender is, along with contact details.
- Record keeping: document where and when the contact gave consent – the tools do this automatically.
The technical side: in 2026, because of Gmail’s and Outlook’s requirements, SPF, DKIM and DMARC records on your domain are practically mandatory. Without them, emails land in spam or don’t get delivered at all. If those terms mean nothing to you, have your web administrator set them up – it’s a one-time job.
What to measure: 5 numbers that actually matter
- Open rate: the 2026 benchmark is 35–45% (Apple’s privacy changes have artificially inflated the number, so don’t compare it to the 20% of earlier years). Below 25% points to weak subject lines or a weak sender reputation.
- Click-through rate (CTR): a good result is 2–5% of all recipients. It’s a more honest metric than opens.
- Unsubscribe rate: below 0.5% per email is normal. Above 1% – the content or frequency isn’t living up to the promise.
- Deliverability: keep the bounce rate below 2%; regularly clean inactive addresses out of the list.
- Revenue per email / conversions: the end goal. Connect email marketing to GA4 (UTM tags on every link!) to see how many inquiries or sales your emails actually bring in.
The most common beginner mistakes
- The list gets collected, but no emails are ever sent – six months of silence followed by a “buy now” email produces a wave of unsubscribes.
- Every email is a sales pitch. Rule of thumb: 3–4 value-giving emails for every sales email.
- The subject line is boring (“Newsletter no. 27”). The subject line is 80% of an email’s success – write it like a headline, not a label.
- Emails aren’t readable on mobile. More than half of all opens happen on a phone.
- UTM tags are missing, so the results of email marketing stay invisible in analytics.
How to get started: a 30-day plan
- Week 1: choose a tool, set up SPF/DKIM/DMARC for your domain, add a signup form to your website.
- Week 2: create a lead magnet and a welcome sequence (2–3 emails).
- Week 3: send your first newsletter to existing contacts; for an online store, launch the abandoned cart automation.
- Week 4: review the numbers, test two different subject lines (A/B test) and set a consistent sending rhythm.
If you’d like someone to review your email marketing strategy, tools and automations as a whole, or build the system from scratch, take a look at our email marketing service – it’s part of our full-service digital marketing, where email marketing is tied together with SEO, content and advertising into one system.
Frequently asked questions
How big does the list need to be for email marketing to pay off?
Smaller than you think. In B2B, as few as 200–500 of the right contacts can bring in inquiries regularly. In an online store, the effect of automations starts to show at around 1,000 contacts. Quality beats quantity.
How often should you send emails?
As often as you can deliver value, but consistently. B2B: 1–2 times a month. B2C/online store: 1–3 times a week. The worst option is irregularity – a long pause wipes out your sender reputation and people forget you.
Is email marketing even allowed under GDPR?
Yes, absolutely – you need consent (or, for existing customers, legitimate interest with an opt-out option), a working unsubscribe link and sender identification. What’s prohibited: purchased lists and cold mass emails to private individuals without consent.
What’s the best free tool to start with?
MailerLite’s free plan (up to 1,000 contacts) covers a beginner’s needs: forms, automations and A/B tests. If you prefer Estonian support, look at Smaily.
Will AI write my newsletters for me?
AI is a good helper for drafts, subject line variations and personalizing by segment, but the value of the content and the brand remain your responsibility. The best results come from a combination: AI speed + human experience and knowledge of the customer.
