Apple's Mail app receives significant upgrades in iOS 27, focusing on enhanced search capabilities and new AI-driven features. The search function now prioritizes results by relevance and user intent, ensuring that important messages, like recent orders, appear before promotional content from the same vendor.

AI integration is prominent with "Ask Siri," allowing users to long-press emails for summaries, item extraction, package tracking, or flight number retrieval. Siri can also perform actions within Mail, such as deleting messages from specific senders or adding information to Reminders. The "Write with Siri" tool offers drafting assistance, proofreading, and style adjustments, aiming to match the user's natural writing tone. Smart Reply suggestions are also personalized to individual writing styles.

New "Contextual Suggestions" extend to third-party apps, offering one-tap actions for calendar events, directions, and package tracking via Wallet. The "Call Context" feature displays relevant email information, like reservation or order numbers, within the Phone app when calling businesses. Performance improvements include faster message loading and more reliable synchronization of unread badges across Apple devices. While search improvements are available on all iOS 27 compatible iPhones, advanced AI features require devices supporting Apple Intelligence and may have regional or language limitations at launch, including English-only for Contextual Suggestions.