Open Source Swift Email Software

Thunderbird iOS is the official iPhone and iPad email client offering from the Thunderbird project, bringing the capabilities of a feature-rich, open-source email experience to iOS devices with native UI and Apple platform integrations. The app gives users a powerful tool for managing multiple email accounts, including IMAP and POP3 configurations, and supports modern authentication flows like OAuth for popular providers. Designed with mobile usability in mind, it includes familiar gestures, thread views, swipe actions, attachment previews, and integrated search so users can stay productive on the go. It also handles common email needs like organizing with folders, setting flags, and filtering messages, while respecting platform norms for notifications, background fetch, and data usage. By maintaining a connection to the desktop Thunderbird project’s ethos, the iOS client places emphasis on transparency, extensibility, and user control.

Proton Mail for iOS is the official iPhone and iPad client that brings Proton’s secure, end-to-end encrypted email service to Apple’s mobile ecosystem, combining strong privacy protections with native performance and gestures. The app allows users to sign in to one or multiple Proton Mail accounts, read and compose encrypted messages, schedule emails, protect emails with passwords, set expiration timers, and organize mail with labels and folders inside a smooth, intuitive iOS interface. It makes use of Apple’s networking APIs and encryption frameworks to deliver seamless management of encrypted communications while respecting platform conventions like touch navigation, Apple notifications, and background refresh. All sensitive operations — including key handling and encryption — occur locally on the user’s device, ensuring that plaintext messages and secret keys are never exposed to Proton’s servers or third parties.

✅ What Your App Does ● Keeps emails unread in preview - Continuously protects emails from being auto-marked as read when selected ● Respects your manual actions - Honors toolbar clicks and keyboard shortcuts (shift-cmd-U) ● Allows reading when intended - Marks emails as read when you double-click to open in a new window ● Runs in background - Menu bar icon with enable/disable toggle ● Auto-launches - Starts automatically with Apple Mail 📦 Professional Distribution ● Clean installers - Both DMG and PKG with proper versioning (1.5.3) ● Visible app icon - Professional appearance in Applications folder ● Works across macOS versions - Compatible with Sonoma (14), Sequoia (15), and Tahoe (26) 🎯 Final Features ✓ Background operation with menu bar control ✓ Auto-start with Apple Mail ✓ Continuous preview protection ✓ Respects toolbar "Mark as Read/Unread" ✓ Respects shift-command-U keyboard shortcut ✓ Proper window detection for double-clicked emails ✓ Bui

Super simple mail merging for Mac OS X using CSV and Mac's Mail.app. Start by creating a CSV file with one header row and no header columns. Excel or Numbers are both capable of exporting to CSV. Load the CSV file in SimpleMerge then fill out the template email. Use the header value enclosed in percent signs wherever you want to use a value from the CSV file.