The obituary for email marketing has been written so many times that most marketers now treat it as a punchline. Social media killed it. Messaging apps killed it. Apple’s privacy updates killed it. Yet consistently, year after year, email generates the highest ROAS of any digital channel by a wide margin — and it is growing, not shrinking.
The Case For Email in 2026
The fundamental appeal of email has not changed. You own the list. Unlike a social media following, an email subscriber is a direct relationship that no algorithm can reduce to near-zero reach overnight. Meta changes its algorithm and organic reach collapses. A platform bans your account and years of community-building disappears. Your email list is an asset that belongs to your business.
The ROAS data is consistent across every major email marketing benchmark. Industry reports repeatedly show average returns in the range of 36× for email — meaning for every rand spent on email marketing, businesses generate around R36 in revenue. That dwarfs paid search (typically 8×), paid social (5×), and programmatic display (3×).
The reason is simple: email audiences are warm. They chose to hear from you. The transaction cost of each message is negligible compared to paid channels where you pay for every impression or click regardless of intent.
The Real Challenges
None of this means email is easy or that any list will automatically generate those returns. The challenges are real and worth naming honestly.
Deliverability is harder than it was. Gmail’s 2024 updates tightened sender requirements significantly. Businesses sending to cold or unengaged lists are now far more likely to end up in spam. Building and maintaining a healthy, permission-based list with proper technical setup (SPF, DKIM, DMARC) is a prerequisite, not an afterthought.
Open rate measurement is imperfect. Apple’s Mail Privacy Protection means that open rates for iOS users are inflated — they now show as opened even if the recipient never actually read the email. This makes open rate a less reliable primary metric than it used to be. Click rate, click-to-open rate, and revenue per send are better indicators of real engagement.
Attention is scarce. The average person receives dozens of marketing emails per day. Standing out requires genuine value in each send — not just a promotional cadence that trains subscribers to ignore you.
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The Three Types of Email That Drive Revenue
Most businesses thinking about email focus on the wrong type: broadcast campaigns. While campaigns are visible and feel like "doing email marketing," the highest-return activity in email is automated flows that work continuously without ongoing effort.
Where the Money Actually Comes From
1. Automated flows (60–70% of email revenue for most businesses): Welcome sequences, abandoned cart flows, post-purchase sequences, win-back campaigns. These are set once and run indefinitely at near-zero marginal cost. A three-email welcome sequence for a new subscriber is one of the highest-ROAS things you can build.
2. Segmented campaigns (20–30%): Targeted sends to specific segments based on behaviour, purchase history, or engagement level. Far more effective than broadcast. An email to people who viewed a product page but did not buy will outperform a general promotion by a significant margin.
3. Broadcast campaigns (10–20%): Newsletter sends to your full list. Lower ROAS but important for maintaining list health, brand presence, and relationship-building. These should inform and add value — not just sell.
Most businesses skip straight to broadcast campaigns because they are the most visible. Invest in flows first. The returns are better, and they do not require ongoing copywriting effort once built.
Building a List Worth Having
Email marketing only works if your list is made up of people who actually want to hear from you. Purchased lists, scraped contacts, or lists that have not been maintained do not generate revenue — they generate spam complaints and deliverability problems that affect your ability to reach even the engaged subscribers you do have.
The most effective list-building tactics share a common principle: they give something in exchange for the email address. A discount for first-time buyers. A useful guide or tool. Early access to something. A newsletter with a genuinely compelling promise. The value exchange should be clear and the promise should be kept.
A list of 2,000 people who want to hear from you is worth more than 20,000 who forgot they subscribed. List size without list quality is a vanity metric.
List hygiene matters too. Remove or re-engage subscribers who have not opened an email in six months. Sending to chronically unengaged addresses damages your sender reputation and reduces deliverability for your whole list.
Email in Context: Fits Every Business
Email is not exclusively a B2C or e-commerce channel. B2B businesses using email effectively as part of their sales and client communication strategy often see some of the highest returns, precisely because the audience is smaller and more valuable, and because B2B buyers consume email in a different way than B2C audiences.
Service businesses, professional services, agencies, SaaS products, and high-consideration B2B categories all benefit from email — but the strategy differs. Where B2C email often focuses on promotions and product launches, B2B email works best as education, insight-sharing, and relationship nurturing over longer sales cycles.
For service businesses, a well-maintained email list of existing clients and prospects can be the most efficient business development tool available. A monthly update that demonstrates expertise, shares relevant insights, and stays top of mind with past clients costs very little and generates a steady stream of referrals and repeat business.
Where to Start
If you are not doing email marketing yet, or doing it poorly, the entry point is simpler than most people assume. You do not need a complex platform, a large list, or a full content strategy to start generating returns. You need three things:
- A properly configured email platform with correct authentication (SPF, DKIM, DMARC) and a clean sender domain. Brevo, Klaviyo, and Mailchimp all work — choose based on your use case and the integrations you need.
- A simple welcome sequence for new subscribers. Even two or three emails that introduce your business, explain what you do, and give the reader a reason to stay subscribed will improve engagement and reduce early unsubscribes.
- A consistent send cadence you can actually maintain. Once a month to an engaged list that looks forward to hearing from you beats weekly emails that your subscribers have learned to ignore.
Is email still worth it? The data says yes — more clearly than almost any other channel. The question is not whether email works. The question is whether your current email programme is working as hard as it should be.
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