141 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 The shift is pushing brands to modernize outdated infrastructure that limits flexibility and scalability.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 The 2026 martech shift: Fixing broken creative workflows Rivalry Marketing Is Back — And Brands Are Getting Bolder Goodles and BLACKPINK Signal Bold Brand Moves in 2025 The rise of voice search is changing digital advertising strategy Heineken’s Bold Move: Celebrating Life Beyond Social Media Coca-Cola’s Cannes Experience Blends AI, Music, and Real-Time Personalization