OAUTH2 support for Google/Microsoft/Yahoo/AOL accounts (IMAP/POP/SMTP)
Completely rewritten IMAP/POP/SMTP implementation which now all support TLS 1.3
Set as default option in Options/General
MAPI support (e.g. Send to - Mail recipient)
Set as default program for opening external .EML files (also "Open with" shell menu)
Set as default program for "mailto:" links and "Email Link" functionality in some web browsers
Improved Emoji selection panel in the Message Editor and expanded and updated Emoji set
New localization files - Turkish, Ukrainian
Safety Options (Safe/Blocked senders): Load/Save/Copy/Paste/Select All buttons and popup menu for lists, enter keypress to add a new text value into the list
Paste of comma or new line separated list of email addresses into To/Cc/Bcc is automatically converted to individual items
Drag and drop of attachments to the message editor
Completely rewritten message encoder which addresses a number of encoding issues and make a message more valid and more compatible with other programs
Completely rewritten message decoder which is now 63% faster and more accurate
Optimized From/To/Cc/Bcc header encoder to create smaller email address items
More strict error checking in the Account Properties for port settings
Duplicate recipients are removed automatically when sending a message
Message editor size optimization creates as small message as possible
More responsive UI - no longer blocking the communication thread
Message structure and other information shown in Message Properties/Expert
Edit/Copy in the main menu copies selected message text to clipboard
High DPI support (per monitor)
Improved messaging between Accounts/Options and various windows (Main/Editor/Viewer/Sync) to update modified settings instantly on all windows
New keyboard shortcut in the Main Window - CTRL+I (jump to Inbox)
New keyboard shortcuts in the Message Editor - CTRL+SHIFT+S (Insert default signature), CTRL+TAB (Cycle tabs Edit->Source->Preview), CTRL+SHIFT+TAB (Reverse cycle tabs Preview->Source->Edit), CTRL+Enter (Send Message)
Message HTML now entirely created in memory for faster display
New command line parameter (-identity "Name" "Password") - starts identity "Name" (optional "Password")
More modular design makes startup faster
Automatically fix incorrectly specified image file extensions for some emails
CTRL+drag-and-drop to the Message Editor to copy text from a text editing application or normal drag-and-drop to move text
Support for separate popup menus for images, hyperlinks and normal text in the Message Viewer/Editor
Complete rewrite of the HTML display component which fixes its bugs, limitations and memory leaks
Visual indicator in status bar of the Message Editor modified status
Options/Advanced: Browser engine (IE7-legacy for obsolete stationery, IE-Edge for modern engine)
Improved HTML rendering using IE11 engine
Percent-encoded URLs are decoded to show international characters in the status bar when hovering over links using the mouse pointer
Improved "mailto:" URI scheme parser supporting UTF-8 characters and the fields To/Cc/Bcc/Subject/Body/In-Reply-To
Main window status bar can be clicked to open Send/Receive window (if not shown) to monitor details of the ongoing Send/Receive operation
Options/General: Choose how often the errors will be displayed when checking for messages automatically (Always/After n errors/Never)
Message rules editing - Double click to edit, right click menu, enter keypress to add a new text value into the list
Options/Advanced: Warnings are made optional for permanent message delete, empty "Deleted Items" and empty "Junk Email"
Bug fixes
Fixed spell checker freezing on rare occasions
Print/Print Preview headers were too tiny on a high DPI system
Reply/Forward on certain messages could freeze the Message Editor so it would never show up
Check Names in the Message Editor now checks for duplicate email addresses across all fields (To/Cc/Bcc) instead of just one like before
Copy/Paste of single image did not work in the Message Editor (copying image and then pasting into another area of the text)
Switching between Edit/Source/Preview now stops running sounds and effects to avoid audio duplication in stationery
Preview tab in the Message Editor didn't work for VBScript on Windows 10 or newer
Embedded images no longer disappear after a message being edited is saved to Drafts
IMAP fixes for unrecognized message lists (5 fixes)
Fixed crash on program exit under some circumstances
Message Editor preview didn't allow clicking on links and link preview in the status bar
Message Editor popup menu Properties now enabled
Blocked content bar appeared for a short time if the first opened message had external images
No more slowdown on messages with invalid external links (showing/replying/forwarding)
Zoom over 100% didn't scroll initial message to top
Clicking into Message Editor uses font set by user
Improved detection of modified message in the Message Editor
Mouse wheel scrolling no longer shifts keyboard focus to the HTML viewer or editor
Dragged text object no longer covers drop location in the Message Editor
Mouse actions didn't set Message Editor modified status
CTRL-S didn't work while in the Message Editor
Right-to-left document wasn't properly set when opening RTL drafts
Tab key in preview pane no longer jumps through message viewer links
Right click in the Message Editor did not activate Paste button
Save as Stationery used incorrect filename
Standard folders (Inbox/Sent/Deleted...) were not localized in the Copy/Move window
Safety Options window no longer deletes blocked senders if OK is clicked without list modification
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