255 TL;DR: Brands are shifting to modern email platforms as legacy ESPs struggle with AI, personalization, and real-time engagement. Article: The gap between modern and legacy email service providers is widening as marketers demand faster personalization, AI-driven automation, and real-time customer engagement. Older ESP systems were largely built for bulk email distribution, while modern marketing teams now expect platforms that combine customer data, predictive analytics, and cross-channel communication in a single workflow. Newer ESPs are increasingly offering AI-powered audience segmentation, automated optimization, and dynamic content generation. Industry experts say these features are becoming essential as brands focus more heavily on retention and personalized customer experiences. According to industry research cited in the report, email marketing continues delivering one of the highest returns across digital channels, making platform performance a growing priority for businesses. A marketing technology expert quoted in the report said many companies are “outgrowing systems designed for a different era of digital communication.” The shift is pushing brands to modernize outdated infrastructure that limits flexibility and scalability. As customer expectations rise, email platforms are evolving from simple distribution tools into broader customer engagement systems. You Might Be Interested In How Peyush Bansal’s 360° marketing vision turned Lenskart into a lifestyle brand ahead of its IPO Goyal’s new ventures test India’s wearables and regional flight markets AI & Culture Unite: Inside 2025’s Most Visionary CMOs How Ralph Lauren is scaling luxury service with AI without diluting its heritage Yahoo is rebuilding its DSP as a data backbone for an Agentic Advertising Future 5 Content Strategies Redefining Brand Engagement in June 2025