Letterboxx Release Notes

Letterboxx 1.0.10 continues to make setup easier to do, clearer, and more pleasant.

• Existing customers are reliably returned to their Library after updating.
• A more thoughtful guided setup helps you connect Gmail, Outlook, iCloud, Fastmail, DreamHost, and other mail accounts.
• Fixed an issue that could open the wrong setup form when adding an account after updating from an earlier version.
• Choose where newsletters from each selected folder or label belong: create a Letterboxx, pick one you already have, or leave them in Letterboxx Inbox.
• Search large folder and label lists, review everything you've chosen, and make changes before building your Library.
• See clearer first-library progress while Letterboxx adds local newsletter copies and leaves your original email right where it is.
• Start reading in a more balanced, useful workspace.

Letterboxx 1.0.9 introduces a more thoughtful way to get started.

• A new guided setup experience explains how Letterboxx works before you connect an account.
• Clearer, provider-aware email setup for Gmail, Outlook, iCloud, Fastmail, DreamHost, and other mail accounts.
• Choose the folders or labels you want to use, review read-status preferences, and connect more than one account before building your Library.
• A clearer first-library experience shows what Letterboxx is doing and helps you get to your newsletters with confidence.
• Refined trial and subscription setup, plus reliability improvements throughout onboarding.

Take a closer look at the new setup

Three moments that make connecting your newsletter sources feel clearer and more reassuring.

Start with clarity

Before you connect an account, Letterboxx explains how it works and what it will do.

Choose what belongs in your Library

Choose Gmail, Outlook, iCloud, Fastmail, DreamHost, or another mail account, then decide which folders or labels Letterboxx should use.

Settle into your Library

Once setup is complete, Letterboxx brings you into your Library and makes it easy to begin reading.

Letterboxx 1.0.8 brings reader refinements and reliability improvements.

• Cleaner, clearer controls for Clean View.
• More reliable highlight controls in the toolbar.
• Stability improvements for your Letterboxx library.

This update improves Outlook account setup and import reliability.

• Outlook.com, Hotmail, Live, MSN, and Microsoft 365 accounts now use Microsoft sign-in and Microsoft Graph for newsletter import.
• Fixes an Outlook setup failure where Microsoft sign-in worked but the IMAP mailbox session could still be refused.
• Outlook setup now validates selected folders before saving.
• Account setup now closes after a successful Save in Settings.
• Refines the account folder row layout so selected folders and the Edit button line up more naturally.

This update improves subscription reliability and newsletter list stability.

• Subscribed customers should no longer briefly see or get stuck on the subscription screen while Letterboxx verifies App Store access at launch.
• Letterboxx now recovers access more reliably from verified subscription history when StoreKit has a temporary entitlement delay.
• Restore Purchases now gives clearer feedback if no active Letterboxx subscription is found.
• Improved newsletter list stability during background imports and sync, including cases where the Today view could briefly appear blank.
• Refined the message list internals so row updates stay steadier while new newsletters arrive.

This update adds subscription access for Letterboxx, polishes first-run onboarding, and improves background delivery stability.

• Added a polished App Store subscription screen with monthly and annual options.
• Added Restore Purchases support.
• New users now see a brief welcome flow first, then choose subscription access before connecting a mail account.
• Improved the subscription step with StoreKit-backed pricing, Letterboxx plan cards, and clearer "What you get" value copy.
• Improved onboarding window sizing so welcome, subscription, and account setup steps each get the right amount of space.
• Eligible App Store accounts can start the trial through Apple's purchase sheet.
• Sync and import now require active subscription access.
• Improved automatic background delivery so new-newsletter sounds only play when Letterboxx is active and visible, reducing a rare wake/background crash risk.

This update makes Letterboxx easier to understand and easier to learn from inside the app.

• Added Help menu entries for the Letterboxx User Guide, What's New, and Keyboard Shortcuts.
• Added a native searchable Keyboard Shortcuts window.
• Improved account setup and onboarding language to explain that Letterboxx imports newsletter copies from selected IMAP folders into a local reading library.
• Clarified that original messages stay in the connected mail account unless you delete them and then remove them from Letterboxx's Trash.
• Improved wording around IMAP INBOX and Letterboxx Inbox so server folders and local app organization are easier to tell apart.

This update improves read and unread handling for connected mail accounts, while keeping Letterboxx fast and local-first.

• Added per-account Read status controls in Settings > Accounts.
• Choose whether each account keeps read/unread changes local, sends them to the mail server, or also refreshes recent read/unread status from the mail server during checks.
• Account setup and onboarding now clarify that Letterboxx imports newsletter copies from selected IMAP folders, that your original messages stay in your connected mail account unless you delete them and then remove them from Letterboxx's Trash, and that downloading newsletters does not mark messages read on the server.
• Local reading stays immediate; optional mail-server updates run quietly in the background, with lighter read-status refresh work during sync.
• Existing accounts can now save Read status changes without retesting the connection when connection details have not changed.
• Menu commands now stay disabled until the needed account setup or newsletter selection is available.
• Fixed a rare crash path in the newsletter list's native Mac swipe-action support.

This update makes Letterboxx faster, steadier, and more native on the Mac.

• Improved launch responsiveness and reduced startup pauses.
• Faster newsletter list interactions, especially when selecting unread messages.
• More reliable native Mac swipe actions and contextual menus.
• Improved reader and Clean View loading to avoid duplicate viewer loads.
• Smoother sidebar navigation and hover behavior.
• Stability improvements around message selection, list refreshes, and reader rendering.

Letterboxx 1.0.1 improves the core reading, list, and account setup experience since the initial App Store release.

• More reliable newsletter-list selection, deletion, dragging, row refresh, and native Mac swipe behavior.
• Fixes for crashes and visual glitches while switching mailboxes, filtering newsletters, and using row actions.
• Better startup and inbox responsiveness.
• Searchable IMAP folder selection, custom newsletter folders, and multi-folder account routing.
• Improved handling for emoji and non-ASCII IMAP folder names.
• Cleaner, calmer account folder setup and routing controls.
• Reader and Clean View polish, including a more natural Message Diagnostics flip that keeps newsletter content isolated from diagnostics.
• Sidebar and dashboard refinements for a steadier, more native Mac feel.

Letterboxx is a focused Mac reader for email newsletters.

• importing newsletters from email accounts
• browsing newsletters in a three-column Mac interface
• reading newsletter content in a dedicated viewer
• using Clean View / Message Diagnostics surfaces to understand and simplify newsletter content
• organizing newsletter workflows with local app state and Mac-native controls