Postbox

What's new in this version:

New Features
- New designs for Mac OS X Yosemite and Windows 8 and 10
- Support for Dropbox, Box, and OneDrive via Cloud Sharing Add-on
- Redesigned Contacts Sidebar in the Compose window
- Added several new attributes to the Focus Pane
- Full HTML editor has been added to the Compose window
- Mailing List Unsubscribe
- Support for custom quote colors
- Composition Goals
- Quick Bar actions for Signatures, Responses and Topics
- Domain Fencing
- Social View
- Subscriptions View

Enhancements
- Topic labels can now display in color within the Focus Pane
- Topic color can now be set from context menu in Focus Pane
- Topics no longer change position in the Focus Pane when renamed or favorited
- Added more contextual menu options to the Compose Sidebar
- Added more contextual information to compose sidebar
- Keyboard shortcuts are now reassigned when Topics are reordered
- Multi-selection has been added for several Focus Pane Attributes
- Unread count now displays next to Favorite Contacts in the Focus Pane
- Filters now automatically select after creation
- Multi-file selection is now supported for Quick Look in the Compose window
- Adopted newest Mozilla standard for Dictionary add-ons
- Sidebar searches are now automatically populated with a selected Focus Pane Topic
- Reorganized Favorite Topics and Contacts contextual menus in Focus Pane
- Reorganize Favorite Contacts Contextual Menu
- Contact names in message envelope are now selectable
- Support for opening Favorite Topics and Contacts in a new tab
- New color palette based on Ethan Schoonover's Solarized palette
- Enhanced the usability for opening content in foreground/background tabs
- More descriptive and logical labels for content in a tab
- Gravatar images display at correct resolution on Retina machines
- Added options for removing signature delimiters
- Added Assign Topic options to Compose Window
- Support Text to Speech on Mac
- Sort order is maintained when selecting a different column to sort by in Classic view
- Windows DPI can now be adjusted in preferences for high-resolution displays
- Editor for Signatures and Responses is larger and powered by CodeMirror
- Implemented setup hints for Google and iCloud accounts
- Redesigned Topics, Quick Move, and Quick Switch panels

Changes
- Removed profile photos from Summarize
- Removed Facebook, Twitter, and LinkedIn integrations
- Pull-down menu buttons are now press-and-hold actions
- Change "To-Dos" to "Reminders"
- Removed opening/closing animations for several panels

Fixes
- Fixed an issue that would prevent Quick Look from working in the Compose window.
- Fixed an issue that would prevent RSS feeds from auto-subscribing
- Fixed an issue with pasting rich text into the compose window
- Increased the size of the add-ons dialog to prevent text from running off panel
- Fixed several issues related to creating Address Book lists
- Fixed an issue with renaming messages during a search
- Fixed an issue with Spotlight Searches not linking to messages
- Fixed an issue that would prevent a contract from being added to Focus Pane favorites
- Fixed an issue with ordinals and favoriting of Topics
- Fixed an issue with Topic unread counts not displaying during Account Group selection
- Fixed an issue when indexing messages with invalid URLs
- Fixed several issues related to adding/deleting Topics during a search
- Fixed an error that could occur when switching accounts
- Fixed an issue that could cause duplicate filters to be created
- Fixed an issue where selecting a topic after deleting a topic doesn't update the thread
- Fixed an issue with code signing for Mac OS X Yosemite
- Fixed Next/Previous controls for content views on Retina
- Fixed an issue that could cause the message list to go blank when deleting accounts
- Fixed an issue with stuck tab markers when moving tabs around
- Fixed an issue that would cause images to only resize horizontally
- Fixed an issue with vCards looking bad on Retina
- Fixed issue where contact would not refresh if name is changed
- Fixed an issue where signatures would be inserted in the wrong location
- Fixed issues with bullet formatting in the Compose window
- Fixed a crash when attaching images from Apple's new Photos app
- Several other fixes too numerous to list :)