It may seem contradictory that email, a technology from 1971, remains the communication and marketing channel with the highest return on investment in 2026. Email marketing generates an average ROI of 36 euros for every euro invested, far surpassing social media or search advertising. Its main advantage is that the subscriber list is owned by the creator, it does not depend on algorithms or changes in external platforms, and it reaches the audience's inbox directly.
The technical architecture behind email's persistence 📧
Email has not survived out of nostalgia, but because of its decentralized technical foundation. While social media operates on proprietary APIs and centralized servers that can change their rules at any time, email uses open protocols like SMTP, IMAP, and POP3. This allows anyone to set up their own mail server, control their data, and avoid dependence on third parties. Additionally, techniques like SPF, DKIM, and DMARC authentication have improved deliverability, reducing spam and ensuring messages reach their destination without intermediaries deciding their visibility.
Meanwhile, in the community manager's office 😅
While Instagram algorithms change without notice and your organic reach plummets like a poorly baked soufflé, email remains there, calm, waiting in the inbox. It's like that friend who never lets you down, even if they sometimes send you a shall we meet for dinner? message just when you've already ordered pizza. And the best part: nobody is going to charge you for sending an email to your subscriber list, at least not while you're not trying to sell them a flying carpet with a built-in vacuum cleaner.