QuickMail v0.5.6 Release Notes

Released May 18, 2026 — downloads for this release

New Features

Address book

A new built-in address book stores email addresses and display names for quick reuse. Contacts can be added manually, edited, or imported directly from messages. The address book is stored as human-readable JSON in your AppData folder alongside other QuickMail settings.

• Open File → Address Book (or press Ctrl+Shift+B) to manage contacts
• Search by name or email address
• Choose a contact to view and edit its details

Grab addresses from messages

While reading a message, quickly save sender, recipient, and reply-to addresses to your address book in bulk:

• Open Message → Grab Addresses from Message (or press Ctrl+Shift+G)
• A dialog shows all addresses found in the message (From, To, Cc)
• All addresses are checked by default; uncheck any you don’t want to save
• Activate Save to add selected addresses to your address book

Address autocomplete in compose

When composing a message, matching contacts from your address book appear as you type in the To, Cc, or Bcc fields:

• Type at least one character to see suggestions, sorted by recency
• Press Down arrow to move into the suggestion list
• Press Enter or Tab to insert a contact
• The autocomplete respects your address separator preference (comma or semicolon) — whatever you’ve been using in the field, new addresses use the same separator

Menu bar

All major features are now organized in a menu bar at the top of the window:

All menu items show their keyboard shortcuts for quick reference.

Improvements

Accessibility

• Address book — Keyboard navigation and screen reader support throughout. Delete key removes selected contacts; Enter in the email field submits the add form.

Address separator consistency

When inserting an address from the address book, QuickMail now detects which separator (comma or semicolon) you’ve been using in the field and inserts the new address with the same separator. Both formats are supported throughout: address1, address2 or address1; address2.

Bug Fixes

• Autocomplete race condition — Fast typing no longer causes stale search results to overwrite recent ones. Previous searches are properly cancelled when new text arrives.
• Contact service thread safety — Fixed a race condition in the contact loading logic where concurrent callers could load and cache the contact list twice. Now uses proper synchronization.
• Non-atomic contact saves — Contact data is now written atomically (to a temp file, then renamed) to prevent corruption if the process is interrupted mid-write.

Code quality (internal)

• IContactService interface extracted for contact operations, replacing contact CRUD methods in ILocalStoreService. Contact data is now separate from mail caching.
• Contact search operations now accept CancellationToken to prevent autocomplete race conditions in the UI layer.
• All confirmation dialogs (e.g., contact deletion) moved from ViewModels to view code-behind, maintaining strict MVVM separation.
• Exception logging added to contact service initialization instead of silently swallowing errors.
• XAML parse tests extended to cover AddressBookWindow and GrabAddressesDialog.

Updated documentation

The User Guide has been updated with complete coverage of the new address book features, keyboard shortcuts, and address separator behavior.