Over 6 years, Nelium Systems, has specialized in helping businesses of all sizes establish, grow, and dominate their digital presence.

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+254 758 870 937 / 0710 520 510

Lotus Plaza, Chiromo Lane, Westlands, Nairobi

business@neliumsystems.com / hello@neliumsystems.com

Your owned audience is the cheapest growth you have — if it's compliant

Most South African businesses pour budget into acquiring new customers while neglecting the most valuable, lowest-cost asset they already hold: their list of existing customers and leads. Acquiring a new customer through ads or SEO costs money every time. Communicating with someone who already knows you — through email or SMS — costs a fraction of that and converts far better, because the relationship and trust already exist. Email and SMS marketing is how you turn that owned audience into repeat sales, referrals and loyalty.

The economics are compelling. Well-run email programmes consistently return several times their cost, outperforming most channels on return per Rand, while SMS enjoys very high open rates in a country where almost everyone reads their texts. Used well, these direct channels nurture leads who are not yet ready, recover abandoned carts, drive repeat purchases and keep your business top of mind without paying for every touch.

The catch — and it is a serious one in South Africa — is POPIA. Both channels are direct marketing, and Section 69 of POPIA requires opt-in consent for electronic marketing, with a narrow exception for existing customers. Buying lists or blasting people who never opted in is both unlawful and ineffective. We build email and SMS programmes that grow your revenue while keeping you firmly compliant: proper opt-in, documented consent, easy opt-out, and secure data handling baked in from the start, with the Information Regulator’s expectations in mind throughout.

What our email & SMS marketing covers

Compliant list building and consent capture

Growing a healthy, POPIA-compliant list is the foundation. We design sign-up forms, lead magnets and capture points that collect proper, documented opt-in consent — building a list you can rely on rather than one that exposes you to risk.

Email campaigns and newsletters

Regular, valuable communication that keeps your business top of mind and drives action. We design, write and send campaigns and newsletters that subscribers actually want to open — promotions, updates, education and offers in the right balance.

Automated email sequences

The real power of email is automation. Welcome sequences, lead-nurture flows, abandoned-cart recovery, post-purchase follow-ups and re-engagement campaigns that run automatically, delivering the right message at the right moment without manual effort.

SMS campaigns and alerts

For time-sensitive, high-priority communication, SMS is unmatched in South Africa. We run compliant SMS campaigns for promotions, reminders, order updates and alerts — used judiciously so they drive action without annoying your audience or breaching POPIA.

Segmentation and personalisation

Not every subscriber should receive every message. We segment by behaviour, interest and stage, and personalise communication so it stays relevant — improving results and protecting your sender reputation.

Platform setup and deliverability

We set up and manage the right platform — Mailchimp, Everlytic, Brevo or others suited to the South African market — configured properly for consent, automation and deliverability, so your messages reach inboxes rather than spam folders.

Email & SMS Marketing Services in South Africa

The audience you already own is your cheapest growth.

Why POPIA-compliant email and SMS outperforms the shortcut

There is a temptation to take shortcuts — buying databases of South African numbers and email addresses, or blasting bulk messages to people who never opted in. It is worth being clear why this fails on every level. Legally, it breaches POPIA’s Section 69 and exposes you to the Information Regulator’s enforcement and penalties of up to R10 million for serious contraventions. Practically, it does not even work: messages to people who never asked are ignored, marked as spam, and actively damage the sender reputation that determines whether your future messages reach anyone at all.

Compliant, permission-based marketing is not just safer; it is more profitable. A list of people who genuinely chose to hear from you opens your emails, reads your texts and buys from you at rates a purchased list never will. Every message lands on a warmer audience, your deliverability stays healthy, and your brand earns trust rather than irritation. The discipline of earning consent forces you to build something real — an audience that actually wants your communication — and that audience is worth far more than any quantity of bought contacts. This is why we build every programme on proper consent and genuine value, growing the list ethically, communicating in a way that earns continued attention, and handling data securely throughout, so the channel compounds in value rather than becoming a liability.

How We Work

How we run email & SMS for clients

Strategy and compliant setup

We define goals, choose the right platform, and configure it for POPIA-compliant consent capture, automation and deliverability.

List growth and segmentation

We build compliant capture points to grow your list and segment it so communication stays relevant to each audience.

Campaigns and automation

We design and run campaigns and build automated sequences that nurture leads and drive repeat sales without constant manual effort.

Measurement and refinement

We track opens, clicks, conversions and revenue, and refine continuously to improve results while protecting your sender reputation.

What email & SMS marketing costs in South Africa

Email and SMS marketing is usually scoped as a monthly retainer covering strategy, content, automation and management, with platform and SMS-sending costs on top. A retainer for a South African business typically ranges from R8,000 to R30,000 monthly depending on send frequency, automation complexity and whether both channels are included. SMS carries a per-message cost and email platforms charge by list size, both of which we factor into a clear budget.

The return tends to be among the strongest in digital marketing, precisely because you are communicating with an audience that already knows you. For businesses with an existing customer base or a steady flow of leads, email and SMS often deliver the best return per Rand of any channel. For a broader view, see our guide to digital marketing costs in Kenya, Nigeria and South Africa, and for compliance, our POPIA-compliant marketing automation guide.

Let's activate your owned audience

Request an email and SMS plan and we’ll send a strategy, platform recommendation and quote in Rand. Let’s turn your list into recurring revenue.

Questions & Answers

Frequently asked questions

Can I email people whose details I already have?

Only if you can demonstrate they consented to marketing, or they are existing customers covered by POPIA's narrow Section 69 exception. Where consent is unclear, the compliant route is a re-permission campaign inviting them to confirm they want to hear from you, after which you market only to those who opt in.

Is buying an email or SMS list ever a good idea?

No. It breaches POPIA, damages your sender reputation, and performs poorly because recipients never asked to hear from you. A smaller, genuinely opted-in list outperforms a large purchased one every time.

How often should I email my list?

Consistently enough to stay top of mind, but not so often that you exhaust goodwill. For most South African businesses, a regular newsletter plus targeted automated sequences strikes the right balance. We tailor frequency to your audience and monitor engagement, easing off if open rates dip and leaning in when your audience is responsive, so cadence is driven by data rather than guesswork.

How do you keep my email and SMS POPIA-compliant?

We build proper opt-in consent into every capture point, document it, include clear sender identification and easy opt-out in every message, and handle data securely. See our POPIA-compliant marketing automation guide.

Which is better, email or SMS?

They serve different jobs. Email suits richer, regular communication and automation; SMS is unmatched for short, urgent, high-open-rate messages. Many businesses use both, with SMS reserved for time-sensitive alerts and email for ongoing nurture, so each channel does what it does best rather than competing for the same job.

What results can I expect?

Well-run email consistently returns several times its cost, and SMS enjoys very high open rates in South Africa. Actual results depend on list quality, offer and consistency, but for businesses with an existing audience these are among the most cost-effective channels available.

How does POPIA compare to data laws in other African markets I sell into?

The principles are broadly similar across the continent — consent for marketing, the right to opt out, and obligations to keep data secure — but the details differ between South Africa's POPIA, Nigeria's NDPA and Kenya's Data Protection Act. If you market across borders, those differences shape how you capture consent and handle data in each country. Our comparison of POPIA, the NDPA and Kenya's Data Protection Act breaks down what marketers need to know for each, and we configure your email and SMS to respect whichever regimes apply to your audience.

Got a Project in Mind? Let’s Talk.

Big or small, your project deserves expert attention. Talk to our team today and let’s unlock real results through clear, strategic action.

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