The official Mail app for iPhone is expected to pick up some incredible new features in iOS 18. Naturally, the features are heavily tied to AI.
https://www.digitaltrends.com/mobile/ios-18-overhaul-iphone-mail-email-app-ai-features/
https://www.digitaltrends.com/mobile/ios-18-overhaul-iphone-mail-email-app-ai-features/