iOS 18 Mail: How the Transactions Folder Works

In iOS 18, Apple completely redesigns the Mail app by introducing on-device categorization to separate essential personal correspondence from routine automated messages. This article explores how the dedicated Transactions category identifies, isolates, and displays flight confirmations, order details, and shipping receipts to keep your primary inbox clutter-free while ensuring important logistical updates remain instantly accessible.

On-Device Machine Learning and Semantic Analysis

The foundation of the Transactions folder relies on Apple’s private, on-device machine learning models. Instead of sending email contents to an external cloud server for scanning, iOS 18 analyzes incoming messages directly on the device hardware.

The system inspects key semantic indicators inside each email, including:

• Structured Data: Order numbers, tracking links, confirmation codes, dates, and currency symbols.
• Header and Metadata Analysis: Sender domains (such as major airlines, logistics providers, and e-commerce platforms), standard transaction headers (e.g., automated notification tags), and message formats.
• Contextual Keywords: Terms such as "itinerary," "boarding pass," "shipped," "out for delivery," "invoice," and "payment received."

When these components align, the Mail engine automatically flags the message as transactional rather than personal or promotional.

Isolating Flights and Travel Confirmations

Flight confirmations and travel itineraries receive specialized handling within the Transactions bucket. When an airline or travel booking agency sends an itinerary, iOS 18 detects flight numbers, departure and arrival times, and confirmation codes.

Instead of treating the confirmation as a standard static email, the system:

• Extracts Key Details: The operating system pulls crucial data points (gate info, times, booking codes) so they can be parsed by system features like Live Activities and Calendar.
• Consolidates Travel Updates: Subsequent emails regarding gate changes, delays, or check-in windows from the same carrier are grouped under the primary transaction thread, preventing your inbox from being inundated with multiple isolated notices.

Processing Shipping and Order Receipts

Shipping notices and digital receipts are among the highest-volume emails users receive. The Transactions folder isolates these messages by differentiating commercial receipts from promotional sales pitches.

• Separation from Promotions: Retailers often combine a purchase receipt with marketing banners. iOS 18 evaluates the primary purpose of the email. If the message confirms a completed payment or dispatch of goods, it is routed to Transactions instead of Promotions.
• Dynamic Status Tracking: Delivery updates (such as "Order Placed," "Shipped," and "Delivered") are tied to the purchase thread. This keeps the current delivery status at the forefront without requiring manual searches for tracking numbers.

User Control and Categorization Overrides

While the algorithmic filtering happens automatically, iOS 18 includes controls to correct misclassified items. If a receipt or flight confirmation is sent to the Primary, Promotions, or Updates tab—or if a personal note is mistakenly categorized as a transaction—users can manually recategorize the message. Moving an email informs the on-device model of your preference, refining how future messages from that specific sender or format are handled.