7 email marketing tips to improve subscriber engagement
Email marketing has long been a top-performing channel for SMEs, consistently delivering one of the highest Returns on Investment (ROI).
According to Litmus, every dollar spent can generate between $10–$36 in return. For South African businesses, that’s roughly R185–R650 for every R20 spent.
But while the value of email remains clear, the landscape is changing.
Gmail recently rolled out its new Manage Subscriptions update, giving users a single place to view all active subscriptions, with the option to unsubscribe from any list in just one click.
With nearly 1.8 billion active Gmail accounts worldwide, this update should serve as a wake-up call for SMEs: if your emails aren’t delivering real value, it’s now easier than ever for subscribers to opt out.
So how do you keep your hard-earned subscribers engaged and loyal?
Here are seven practical tips.
1. Create high-quality content
Subscribers stay because your emails are worth opening.
Avoid spammy language like “Act now” or “Last chance.”
Instead, write conversationally and provide genuine value – whether that’s exclusive offers, useful insights, or insider tips.
Pay special attention to your subject lines and preview text. They should spark curiosity and deliver on their promise inside the email.
Misleading copy might grab an open once, but it won’t win long-term engagement.
2. Use striking, responsive designs
Design matters. Emails that look outdated, cluttered, or don’t display properly on mobile won’t stand a chance.
Invest in clean, modern templates that are easy to scan, with strong visual hierarchy and plenty of white space.
Always test your layouts across devices and browsers before sending because nothing breaks trust faster than a broken design.
3. Add strong Call To Actions (C2As)
Your emails should guide readers toward clear next steps.
Use short, action-driven CTAs such as:
- Learn more
- Try the demo
- Download now
- Buy today
Strategically place CTAs throughout your email so readers can act whenever they’re ready.
4. Maintain mailing lists
An engaged list is more valuable than a large one.
In fact, all that inactivity can affect you sender reputation.
Maintain your list hygiene by:
- Activating double opt-in on subscriptions
- Regularly removing undeliverable addresses
- Cleaning out inactive subscribers
- Eliminating abuse or spam-reporting addresses
5. Personalise and segment your lists
Emails perform better when they feel personal.
Segment your audience by behaviour, purchase history, location, or interests so that your content feels tailored to them.
The benefits?
- Higher open and click-through rates
- Stronger loyalty
- Fewer unsubscribes
- Better conversions
6. Get your timing and sending frequency right
Consistency builds trust. Sending too often overwhelms subscribers, while too little makes them forget you.
A general rule: send once a week, biweekly, or monthly or adjust based on your own engagement data.
According to Twilio, Tuesdays to Thursdays between 9AM and 2PM are strong times to send, but the real answer lies in your analytics.
Track when your audience engages most and schedule accordingly.
7. Track and adjust
The key to keeping subscribers is by giving them more of what they want.
Use A/B testing on subject lines, layouts, and CTAs to see what resonates.
Regularly review open rates, clicks, and conversions to identify what’s working and refine your strategy.
Continuous improvement is the secret to long-term engagement.
The role of a private domain name and email hosting
There’s no point in working hard to keep and engage email subscribers when your email deliverability rates are poor.
This is influenced by the quality of your emails, but more importantly it depends on whether your email setup has been done correctly.
Sending campaigns from a generic email address like [email protected] instantly reduces trust.
A private domain name (e.g. [email protected]) makes your brand look professional, builds credibility and reduces the risk of landing in spam folders.
And here’s the good news: even if you don’t have a website ready, you can still set up email hosting with your domain name.
This ensures your emails are properly authenticated, helping them reach inboxes while keeping customer replies organised and secure.
At Domains.co.za, we offer six Email Hosting packages each of which delivers robust security features and great value.
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