Social media followers, website traffic and press coverage are often treated as measures of business growth. Yet there is a fundamental problem with relying on them: none guarantees that you can reach the people who have shown an interest in your business tomorrow.
An algorithm changes, advertising costs increase, a platform loses relevance or your content simply stops reaching the right audience. Suddenly, the attention you spent years building becomes much harder to access. This is why email marketing deserves a much more prominent place in a founder's growth strategy. It is one of the few channels through which a business can develop a direct, ongoing relationship with its audience, without depending entirely on social media distribution.
The opportunity is not simply to send more newsletters. It is to build a database of people who have actively expressed an interest in your business, understand what they want and create a communication strategy that turns that interest into commercial value.
1. Why email marketing should be a business priority
You don't own your social media audience. You have access to it through a platform that controls distribution, visibility and the rules of engagement. Your followers might be interested in your business, but that does not mean they will see your next announcement, product launch or offer. Email changes the relationship by giving you a direct communication channel with people who have chosen to hear from you.
This does not mean email guarantees inbox placement. Email service providers and inbox providers still control delivery. However, a permission-based mailing list is a first-party audience asset that you can manage and transfer between email platforms, subject to the relevant privacy rules. That is a considerably stronger position than relying exclusively on rented attention.
There is also a commercial argument. Acquiring a new customer is only one part of building a sustainable business. Founders also need to convert interested prospects, encourage repeat purchases and maintain relationships with existing customers. Email can support all three. For a consultancy, that might mean nurturing a potential client over several months. For a fashion label, it could mean introducing a new collection to previous customers. For a membership business, it could mean communicating ongoing value and encouraging renewals.
2. How to build an email marketing list
The biggest mistake founders make is assuming people will subscribe simply because a newsletter exists. People are protective of their inboxes. They need a reason to give you access to it.
Start with a clear value exchange. What will someone actually receive by subscribing? It could be industry insights, useful resources, early access to products, exclusive invitations, educational content or a genuinely interesting weekly newsletter. The incentive should attract the people you want as customers, rather than simply maximize sign-ups.
Make subscribing easy. Your website should have visible subscription opportunities, particularly on high-intent pages. Include a sign-up option in your website footer, relevant landing pages and checkout process. If someone has spent time exploring your products or services, that is a natural moment to invite them to stay connected.
Use the audience you already have. Social media is not just a distribution channel for content. It can also introduce people to your email ecosystem. Share a useful resource, an exclusive newsletter feature or an insight that encourages followers to subscribe. The objective is to move people from a platform you do not control to a communication channel where you can build a longer-term relationship.
Turn offline interactions into long-term relationships. Events, workshops, networking opportunities, pop-ups and industry gatherings are excellent opportunities to introduce people to your newsletter. A QR code at an event or a sign-up link in a follow-up communication can make the process straightforward, provided people actively consent to receiving marketing emails.
A 2026 study by Intuit Mailchimp and research firm Ascend2, involving more than 6,000 consumers and 2,000 marketers, found that consumers are more receptive to sign-up requests during high-intent moments, such as browsing or checkout. It also found that 56% of consumers who remain subscribed want content that adds value. The lesson is simple: give people a compelling reason to subscribe, and make the experience easy.
One important distinction: never buy an email list or add people simply because you have their contact details. In the EU, GDPR requires valid consent where consent is the legal basis for processing personal data. Consent must be informed, specific, freely given and unambiguous. Email marketing is also subject to applicable national electronic communications rules. Build an audience that has actively agreed to hear from you.
3. What should you actually send?
Getting someone to subscribe is the beginning of the relationship, not the end goal. A mailing list that only receives promotional announcements whenever a business has something to sell is unlikely to remain engaged.
Start with a welcome email. When someone subscribes, introduce your business, explain what they can expect and deliver whatever you promised at sign-up. This is also an opportunity to establish your brand's personality and give new subscribers a reason to open the next email.
Then establish a consistent newsletter. The format will depend on your business, but it should offer something beyond advertising. A founder could share industry observations, useful advice, behind-the-scenes developments, customer stories, new research or curated recommendations. A fashion brand might combine new collections with editorial content, styling advice and information about the people behind the business.
Consistency matters more than sending emails simply to maintain a schedule. Weekly, fortnightly or monthly can all work, provided the frequency matches the value you can deliver. If every email feels like a sales pitch, subscribers will eventually stop paying attention.
4. Segment your audience instead of emailing everyone
Not everyone on your mailing list is interested in the same things. A potential customer discovering your brand for the first time has different needs from someone who has purchased three times. Similarly, a potential corporate client should not necessarily receive the same communication as an individual customer.
This is where segmentation becomes important. Divide your audience into meaningful groups based on their interests, behavior, location, purchase history or relationship with your business. You can then tailor communication accordingly.
For example, a brand could create separate segments for new subscribers, existing customers, repeat buyers and people interested in a particular product category. A service business could distinguish between prospective clients, existing clients and industry contacts.
You should also consider automated emails triggered by specific actions. Welcome sequences, abandoned-cart reminders, post-purchase follow-ups and renewal reminders allow businesses to communicate at relevant moments without manually sending every message. Mailchimp's 2026 research found that businesses with the strongest perceptions of list quality were three times more likely to have fully automated their email and SMS marketing than other businesses.
5. Measure performance, not just the number of subscribers
A mailing list of 20,000 people is not necessarily more valuable than one of 2,000. What matters is whether subscribers engage, take action and contribute to business growth.
Track subscriber growth, click-through rates, website visits, enquiries, purchases, repeat purchases and revenue generated by email campaigns. Monitor unsubscribe rates and delivery failures too, as these can indicate problems with relevance or list quality.
One metric that deserves less attention than it traditionally received is the open rate. Apple's Mail Privacy Protection allows remote email content to load in the background, making it difficult to know whether someone genuinely opened a message. As a result, reported open rates can be inflated. Clicks, conversions and revenue provide stronger evidence of meaningful engagement.
Technical performance matters as well. Google requires email authentication through SPF or DKIM for senders, with additional SPF, DKIM and DMARC requirements for bulk senders. Marketing emails sent to personal Gmail accounts must also meet applicable unsubscribe requirements. A good email strategy is not just about what you write, but whether your emails actually reach the people you intend to reach.
The real value of an email list
Founders often spend their earliest years trying to get more people to discover their business. But sustainable growth requires something beyond visibility. It requires the ability to maintain relationships with the people who have already shown an interest.
An email list gives a business a way to communicate consistently, understand its audience, generate demand and build customer relationships over time. It is not a replacement for social media, PR or other marketing channels. It is the infrastructure that helps turn the attention generated by those channels into something more durable.
The question for founders is not whether they have time to start a newsletter. It is whether they can afford to keep building an audience without having a strategy to reach it.