# Release Notes

## Papercut SMTP v7.8.0 [2026-08-15]

### New Features

- **SMTP Authentication for Forwarding** - The Forward dialog and forwarding rules now support SMTP username/password authentication, along with Forward dialog usability improvements and a new Name property for rules. Fixes [#363](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/363) (Thanks for the report, [Theo-bos](https://github.com/Theo-bos)!)
- **Configurable Web UI Path Prefix** - The Papercut Service web UI and API can now be hosted under a configurable HTTP path prefix, enabling reverse proxy scenarios (e.g. `https://myserver/papercut/`). Fixes [#365](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/365) (Thanks for the suggestion, [Moreno-Gentili](https://github.com/Moreno-Gentili)!)
- **Copy to Clipboard Context Menus** - Right-click now offers Copy / Select All for selected text in the HTML message viewer (alongside the existing link menu), and in the Headers, Text Body, and Raw views. Fixes [#366](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/366) (Thanks for the suggestion, [PJOttCanHome](https://github.com/PJOttCanHome)!)

### Improvements

- **.NET 10 Upgrade** - All projects upgraded from .NET 8 to .NET 10 for the latest runtime performance and security improvements. (Thanks, [Abdulstar](https://github.com/Abdulstar)!)
- **Service Tray Manager Deployment** - The Service Tray Manager introduced in v7.7.2 is now included in the Windows Service deployment packages
- **Smaller UI Footprint** - Removed unused MahApps icon pack dependencies, reducing application size. Fixes [#370](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/370) (Thanks, [AntekOlszewski](https://github.com/AntekOlszewski)!)
- **Documentation** - Added Web UI screenshots and fixed the README star history chart (Thanks, [PingouinFerreux](https://github.com/PingouinFerreux)!)
- **Dependencies** - Updated NuGet packages across all projects, including Rx.NET 7, ReactiveUI 24, WebView2, Autofac, and BouncyCastle, addressing a number of dependency vulnerability alerts

### Bug Fixes

- **Message List Stuck After Long Uptime** - Fixed the desktop app's message list permanently stopping to update after running for a long time (new emails triggered notifications but never appeared until restart). A single transient file-system error could silently terminate the internal refresh subscriptions; refreshes are now resilient to errors, and the message list additionally force-refreshes whenever the window is restored from the tray or taskbar
- **Rule Sync to Service** - Fixed rule changes made in the desktop UI not being saved to the Papercut Service backend when connected. Fixes [#368](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/368) (Thanks for the report, [Pxtl](https://github.com/Pxtl)!)
- **Periodic Rules in Standalone Service** - Fixed periodic background rules (such as the Mail Retention rule) never executing when running the standalone Papercut Service. Fixes [#369](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/369) (Thanks for the report, [Pxtl](https://github.com/Pxtl)!)

### Contributors

Special thanks to [Abdulstar](https://github.com/Abdulstar) for the .NET 10 upgrade, [AntekOlszewski](https://github.com/AntekOlszewski) for the icon pack cleanup, [PingouinFerreux](https://github.com/PingouinFerreux) for the README fix, and to [Theo-bos](https://github.com/Theo-bos), [Moreno-Gentili](https://github.com/Moreno-Gentili), and [Pxtl](https://github.com/Pxtl) for their reports and suggestions!

Several features and fixes in this release were developed with the assistance of [Claude Code](https://claude.ai/claude-code).

## Papercut SMTP v7.7.2 [2026-03-22]

### New Features

- **Service Tray Manager** - New Windows tray notification application for managing the Papercut SMTP Windows Service. Provides system tray icon with service status, start/stop/restart controls, quick access to the web UI, balloon notifications for new emails, and run-at-startup support. Fixes [#249](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/249)
- **Upgrade Dialog with Release Notes** - When an update is available, a new dialog shows current vs. new version with rendered release notes so you can review changes before upgrading. Fixes [#344](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/344)
- **System Accent Color** - Added a "System" option to the theme accent dropdown that reads and syncs with the Windows accent color in real-time. Now the default for new installs. Fixes [#343](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/343)
- **Web UI Overhaul** - Completely refreshed the Papercut Service web interface:
  - Replaced Glyphicons with inline SVGs for a cleaner, dependency-free icon set
  - Per-message delete with confirmation via new `DELETE /api/messages/{id}` endpoint
  - Auto-refresh toggle button and browser back-button navigation
  - Modern visual design with Plus Jakarta Sans font, refined colors, and improved layout
- **Delete All Confirmation** - "Delete All" now shows the message count and only deletes messages older than the confirmation timestamp, preventing accidental deletion of emails arriving during the confirmation dialog. Fixes [#349](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/349) (Thanks, [AntekOlszewski](https://github.com/AntekOlszewski)!)

### Bug Fixes

- **FileSystemWatcher Reliability** - Fixed emails silently stopping to appear in the UI. Root cause was FileSystemWatcher buffer overflows from excessive NotifyFilter events. Now uses FileName-only filter, 64KB buffer, auto-recreation on faults, and a 30-second periodic fallback refresh. Fixes [#352](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/352)
- **Notification Title** - Fixed Windows toast notifications showing "velopack.PapercutSMTP" instead of "Papercut SMTP" by using Velopack's native `--aumid` flag at install time. Fixes [#350](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/350)
- **CID Embedded Images** - Fixed intermittent failure to load Content-ID embedded images in the HTML viewer due to incorrect `file://` URL format and MimeMessage cache state issues
- **HTML Email Preview (Web UI)** - Fixed iframe collapsing to ~8px and load event race conditions by switching to `$watch`-based rendering with direct document writing, ResizeObserver support, and retry-based height measurement
- **Cross-Thread Theme Exception** - Fixed crash when Windows system theme changes while the app is running

### Improvements

- **Security: jQuery & Frontend Library Upgrades** - Upgraded jQuery 1.11.0 to 3.7.1 and jQuery UI 1.10.4 to 1.14.1, mitigating CVE-2020-11022 and CVE-2020-11023 (XSS vulnerabilities). Also upgraded AngularJS 1.3.8 to 1.8.3 and Bootstrap 3.3.2 to 3.4.1. Fixes [#353](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/353)
- **Aspire Integration Documentation** - Added documentation for using Papercut SMTP with .NET Aspire projects, including connection string format and setup examples. (Thanks, [mguinness](https://github.com/mguinness)!)
- **Docker Documentation** - Added troubleshooting guide for volume permission errors when running with mounted volumes
- **Dependencies** - Updated NuGet packages and Velopack to v0.0.1521

### Contributors

Special thanks to [AntekOlszewski](https://github.com/AntekOlszewski) for fixing the Delete All race condition and [mguinness](https://github.com/mguinness) for documenting Aspire integration!

Several features and fixes in this release were developed with the assistance of [Claude Code](https://claude.ai/claude-code).

## Papercut SMTP v7.6.2 [2025-11-11]

*Release replaces 7.6.1 which had a major issue with email receiving in the UI.*

### New Features

- **Dark Theme Support** - Added full dark theme support with automatic Windows dark mode detection and synchronization. Fixes [#228](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/228) (Thanks, [wonea](https://github.com/wonea)!)
  - System/Light/Dark base theme selection with accent color customization
  - Automatic system dark mode detection with live theme updates
  - AvalonEdit syntax highlighting supports both light and dark modes
  - Theme-aware attachment icons and UI controls throughout the application
- **IP Allowlist Support** - Added IP allowlist filtering for SMTP and HTTP connections with CIDR notation support. Fixes [#333](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/333) (Thanks, [mhkarimi1383](https://github.com/mhkarimi1383)!)
  - Configurable via `SmtpServer:AllowedIps` setting
  - Support for individual IPs (e.g., `192.168.1.100`) and CIDR ranges (e.g., `192.168.1.0/24`)
  - Comprehensive unit tests for IP validation and range matching
  - Fail-closed security - blocks all connections if validation fails
- **Dynamic Property Editor for Rules** - Replaced legacy PropertyGrid with custom MahApps.Metro-compatible dynamic property editor
  - Reflection-based property discovery using System.ComponentModel attributes
  - Intelligent control selection (TextBox, NumericUpDown, ToggleSwitch, PasswordBox)
  - Category-based property organization with smart ordering
  - Resizable GridSplitter between rules list and property editor
  - Full dark theme support in Rules Configuration dialog

### Improvements

- **.NET 9.0 Upgrade** - Upgraded entire solution to .NET 9.0 for improved performance and latest framework features
- **Theme Consistency** - Modernized UI to use dynamic theming with refreshed Options dialog and message list visuals
- **Tab Preservation** - Selected message detail tab (Message/Body/Headers/Raw) now preserved when switching between messages
- **Code Quality** - Fixed numerous compiler warnings and null-safety issues throughout the codebase
- **Resource Management** - Fixed X509Certificate2Collection resource leak
- **Docker Improvements** - Updated container and runtime images for .NET 9.0

### Code Quality

- Comprehensive unit tests for IP allowlist validation
- More flexible SMTP/server startup wiring and options
- Internal robustness improvements with clearer initialization and lifecycle handling
- Better error handling across core components

### Contributors

Special thanks to [wonea](https://github.com/wonea) for requesting dark theme support and [mhkarimi1383](https://github.com/mhkarimi1383) for requesting IP allowlist functionality!

## Papercut SMTP v7.5.1 [2025-10-31]

### Bug Fixes

- **Forwarding Rules Failing** - Fixed critical bug where email forwarding rules were completely broken due to TaskCanceledException. Fixes [#331](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/331) (Thanks, [wcwhitehead](https://github.com/wcwhitehead)!)
- **SSL/TLS Connection Mode** - Fixed SSL/TLS connection mode to use SslOnConnect for port 465 and Auto for STARTTLS
- **SMTP Timeout** - Set proper SMTP timeout of 30 seconds for forwarding rules
- **Backend Service Status** - Fixed initial status detection for backend service

### Contributors

Special thanks to [wcwhitehead](https://github.com/wcwhitehead) for reporting the critical forwarding rules bug!

## Papercut SMTP v7.5.0 [2025-10-28]

### New Features

- **Search Functionality** - Added Ctrl+F search to all message detail views (Message, Body, Headers, and Raw). Fixes [#295](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/295)
- **Zoom Controls** - Added Ctrl+Mouse Scroll Wheel zoom support to message detail views with persistence and visual indicators. Fixes [#323](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/323)
- **Attachment Display** - Attachments now display in the main message panel with icons and easy access. Fixes [#112](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/112)
- **Context Menu for Links** - Right-click context menu added for email links with copy and open functionality. Fixes [#218](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/218)
- **Empty State Placeholders** - Added smart empty state messaging to message list and detail views for better first-time user experience. Fixes [#268](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/268)
- **SMTP Authentication and TLS/STARTTLS Support** - Full support for SMTP authentication and TLS/STARTTLS encryption for secure email testing. Fixes [#102](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/102)
- **Periodic Background Rules** - Added periodic background rule execution with mail retention cleanup to both UI and Service. Related to [#251](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/251)
- **Windows Package Manager (winget) Support** - Papercut SMTP can now be installed and updated via winget. Fixes [#231](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/231)
- **File Links Support** - Made file:/// links functional by opening with shell/explorer. Fixes [#232](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/232)
- **Example Console Applications** - Added comprehensive example console applications for email testing scenarios
- **Installer Help Support** - Added help parameter support for PowerShell/cmd users. Fixes [#287](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/287)

### Improvements

- **Word-Wrap Support** - Added CSS word-wrap support to HTML email rendering for better display of long text strings. Fixes [#154](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/154)
- **Non-Standard Email Domains** - Added support for non-standard email domains in development environments (e.g., .local, .dev). Fixes [#284](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/284)
- **SSL Certificate Error Handling** - Added optional SSL certificate error handling for WebView2 to support self-signed certificates. Fixes [#243](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/243)
- **Comprehensive Unit Tests** - Added extensive unit tests with FluentAssertions for improved code quality and reliability
- **NuGet Package Upgrades** - Upgraded all NuGet packages to latest versions, including migration to new Polly ResiliencePipeline API
- **Service Architecture** - Refactored attachment and process handling into dedicated services for better separation of concerns
- **Settings Debouncing** - Implemented debounced settings saves using Rx Throttle operator to reduce unnecessary I/O

### Bug Fixes

- **Window Size Saving** - Fixed window size not saving correctly when minimized. Fixes [#327](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/327)
- **PDF Attachment Opening** - Fixed PDF attachment opening on Windows 11 24H2 and double-click issues. Fixes [#310](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/310), [#280](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/280)
- **Message Rendering with # Characters** - Fixed message rendering for subjects containing # characters. Fixes [#282](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/282) (Thanks, [xavero](https://github.com/xavero)!)
- **SMTP IP Logging** - Fixed SMTP service not logging remote client IP address correctly. Fixes [#291](https://github.com/ChangemakerStudios/Papercut-SMTP/issues/291)
- **Empty State Flicker** - Fixed placeholder flicker when switching between emails
- **WebView2 Deserialization** - Added robust error handling for WebView2 message deserialization
- **Null Safety** - Various null safety improvements and fixes throughout the codebase
- **Process.Start Null Checks** - Added null checks for Process.Start return values to prevent exceptions

### Code Quality

- Refactored to use IUiCommandHub.ShowMessage instead of MessageBox.Show for better testability
- Extracted debouncing logic into reusable SettingsSaveDebouncer
- Improved async patterns and error handling in example applications
- Fixed test assertions to use FluentAssertions consistently
- Added nullable reference type attributes throughout codebase

### Documentation

- Added comprehensive TLS/STARTTLS setup documentation with Docker examples
- Created example projects: SendEmailTest, SendRichEmailTest, SendWordWrapTest, SendEmailWithTls, SendEmailWithFileLinks
- Improved Docker documentation with troubleshooting guides
- Added installation guide for PowerShell and command-line users

### Contributors

Special thanks to [xavero](https://github.com/xavero) for fixing message rendering with # characters!

## Papercut SMTP v7.0.2 [2025-10-09]

### Improvements
- Modernized versioning system to use Directory.Build.props instead of GlobalAssemblyInfo.cs
- Added Windows ARM64 support (#283)
- Improved port configuration for SMTP and HTTP services (#285, #286, #293)
- Enhanced Docker support with non-privileged ports (SMTP: 2525, HTTP: 8080)
- Consolidated documentation and improved Docker build process

### Bug Fixes
- Fixed Windows Service installation and auto-start issues (#294)
- Fixed Linux path separator handling (#292)
- Fixed SMTP server options configuration

### Build System
- Refactored build.cake to reduce code duplication
- GitVersion now populates version properties via MSBuild
- Removed deprecated assembly patching approach

## Papercut SMTP v7.0.1 [2024-11-08]

- Fixed Run on Startup broken. (Thanks, [rikrak](https://github.com/rikrak)))

## Papercut SMTP v7.0.0 [2024-10-14]

_NOTE: Uninstall any existing Papercut SMTP installations BEFORE installing this new version._

- Upgraded to .NET 8
- Upgraded to latest dependencies (Caliburn Micro, Autofac, MahApps) and associated systems to support .NET 8.
- Switched to [Velopack](https://github.com/velopack/velopack) auto-upgradable installation system. Great project! (Thanks, [caesay](https://github.com/caesay)!)
- Fix for log updating constantly causing unnecessary WebView2 loading. (PR thanks to [arthurzaczek](https://github.com/arthurzaczek))
- Fix for double request when clicking on links in emails. Issue #232.
- Added InvokeProcess Rule (#274)

## Papercut SMTP v6.2.0 [2022-04-24]

- Upgraded to .NET Framework v4.8 (PR thanks to [1Jesper1](https://github.com/1Jesper1))
- Service doesn't overwrite settings on exit anymore.
- Simplified HTTP binding setting for Service. Basically, "<http://0.0.0.0>" for "all" binding works again.
- Added Attachment Icon (PR thanks to [Cload](https://github.com/Cload)
- Added graceful fall-back support and error message if WebView2 isn't properly installed.
- Fix for checking registry key for installing edge webview2 & version fixes (PR thanks to [1Jesper1](https://github.com/1Jesper1))

Thank you all for your feedback and assistance with this release!

## Papercut SMTP v6.0.0 [2021-11-14]

_NOTE: Papercut SMTP now requires that Microsoft Edge WebView2 be installed. Papercut SMTP will automatically run the installation dependency if WebView2 is not available._

- Moved to Edge (WebView2) for email display providing modern browser support for viewing.
  - Support for SVGs.
  - Support for newer HTML/CSS display.
- Fixed: Progress bar for Forwarding Dialog displays correctly now.
- Fixed: Multiple issues with the forwarding dialog.
- [#193] Add logging path to settings.json (PR thanks to [1Jesper1](https://github.com/1Jesper1))
- [#192] Adds an option (defaulting to true) to enable popup notifications when a new message is received. (PR thanks to [richardlawley](https://github.com/richardlawley))
- [#189] Use first capital character in text in "proceed" and "cancel" buttons (PR thanks to [1Jesper1](https://github.com/1Jesper1))

## Papercut SMTP v5.8.0 [2021-06-16]

- Moved to .NET Framework 4.7.2
- Upgraded to latest dependencies (Caliburn Micro, Autofac, MahApps)
- Fixed: Window sizes weren't binding properly.
- Converted system to Async.
- Added additional theme colors.
- Updated the logo.
- Fixed: Hide passwords in rules logging output.
- Fixed: Don't show passwords in rules logging output.
- [#175] Added font weight changing when message has been seen (PR thanks to [LewisJohnson](https://github.com/LewisJohnson))
- [#180] Fixed message not displaying in Web UI when id includes '#' symbol (PR thanks to [ryan-warrener](https://github.com/ryan-warrener))
- [#185] Responsive Delete button (PR thanks to [rfverbruggen](https://github.com/rfverbruggen))

## Papercut SMTP v5.7.0 [2020-04-05]

- Renamed product to "Papercut SMTP" to seperate from other products.
- Moved "Readme.eml" and logs to _\ProgramData\Changemaker Studios\Papercut SMTP_ allowing it to be deleted.
- Changed default save directory for Papercut UI to _\%ApplicationData%\Changemaker Studios\Papercut SMTP_. Mail in legacy paths are still supported.
- Added support for embedded message mime types and the ability to save the embedded eml.
- Performance improvements loading messages.
- Misc bug fixes.

## Papercut v5.6.0 [2020-04-02]

- [#143](https://github.com/ChangemakerStudios/Papercut/issues/143) Added "Delete All" button.
- Switch "Self Hosted Web" to use OWIN/Katana -- which should fix issues with binding.
- Added IP and port Papercut IPComm configuration in json settings.
- Improved message loading speed.
- Limited logging and added automatic logging pruning.

## Papercut v5.5.0 [2019-03-08]

- NOTE: Web UI is now only available in PapercutService.
- Switched to using [SmtpServer](https://github.com/cosullivan/SmtpServer) project for Papercut's SMTP Server.
- Added http:// link in log for Web UI improving discoverablity for the UI. Hopefully fixed the issues with the web ui binding.
- [#137](https://github.com/ChangemakerStudios/Papercut/issues/137) - Removed plugin architecture.
- [#96](https://github.com/ChangemakerStudios/Papercut/issues/96), [#132](https://github.com/ChangemakerStudios/Papercut/issues/132) - Fixed issue with receiving email as UTF-8 by default.
- [#105](https://github.com/ChangemakerStudios/Papercut/issues/105) - Fixed: Clicking target="blank" links in emails will now use the default browser.

## Papercut v5.2.16 [2019-02-01]

- Added http:// link in log for Web UI improving discoverablity for the UI. Hopefully fixed the issues with the web ui binding.
- StartHttpServer for the Web UI needs to be called in another thread -- it was causing hangs on loading.

## Papercut v5.1.88 [2018-12-02]

- Converted build to use Cake -- PR thanks to [tdue21](https://github.com/tdue21).
- Fix: Papercut Protocol failing during serialization due to incorrect JSON.NET settings PR thanks to [jennings](https://github.com/jennings).

## Papercut v5.1.76 [2018-08-16]

- [#122](https://github.com/ChangemakerStudios/Papercut/issues/122): Add "Papercut" to SMTP banner.

## Papercut v5.1.70 [2018-07-12]

- Hacky way to get a sort of "comment" into the settings file and keep them there. :)

## Papercut v5.1.23 [2018-03-18]

- [#50](https://github.com/ChangemakerStudios/Papercut/issues/50): When Message Sort Order is 'Descending' the 'current' message always moves to bottom.
- [#110](https://github.com/ChangemakerStudios/Papercut/issues/110): Support for AUTH LOGIN and AUTH PLAIN.
- Added authentication parameters to SmtpSession

## Papercut v5.1.19 [2018-03-04]

- [#94](https://github.com/ChangemakerStudios/Papercut/issues/94): Removed manifest/deployment for oneclick.

## Papercut v5.1.3 [2017-12-06]

- [#73](https://github.com/ChangemakerStudios/Papercut/issues/73): Feature enhancements for the WebUI plugin.
- [#81](https://github.com/ChangemakerStudios/Papercut/issues/81): Removed Click-Once.
- [#85](https://github.com/ChangemakerStudios/Papercut/issues/85): Forwaring rule to server with STARTTLS not supported.
- [#89](https://github.com/ChangemakerStudios/Papercut/issues/89): Forwarding messages to an SMTP server on a port other than 25.
- Added a check for the MessagePath configuration loader which will now soft fail if it cannot load the configuration.

## Papercut v5.0.9 [2017-09-13]

- [#4](https://github.com/ChangemakerStudios/Papercut/issues/4): URLs are decoded when clicking on link.
- [#46](https://github.com/ChangemakerStudios/Papercut/issues/46): Added support for SeqApiKey for issue #46 fixed.
- [#60](https://github.com/ChangemakerStudios/Papercut/issues/60): Simple bootstrapped MSI installer, thanks to [tdue21](https://github.com/tdue21).
- [#63](https://github.com/ChangemakerStudios/Papercut/issues/63): Basic web ui features, thanks to [jijiechen](https://github.com/jijiechen).
- Fixed the mispelling for Papercut.Module.
- Upgrade to .NET v4.5 - Leaving the past behind. WebAPI layer is properly loading now.
- Plugin directory no longer needs to be copied.

## Papercut v4.8.0.3 [2017-03-29]

- [#46](https://github.com/ChangemakerStudios/Papercut/issues/46): Papercut.Service.json Options.
- [#52](https://github.com/ChangemakerStudios/Papercut/issues/52): ConnectionManager check for idle connections is incorrect.
- [#54](https://github.com/ChangemakerStudios/Papercut/issues/54): Border Color Doesn't Change with Theme Changes.
  
## Papercut v4.8.0.1 [2017-02-12]

- Removed "Always on disk logging"
- Theme Switcher
- Improved Option Handling
- Minimize to Tray Option

## Papercut v4.7.0.1 [2017-02-08]

- Bug fixes for Message Encoding

## Papercut v4.6.1.12 [2016-04-08]

- Merge branch 'master' into develop

## Papercut v4.6.1.8 [2016-04-07]

- Trying multiple artifacts.

## Papercut v4.5.0.0 [2016-01-26]

- Added Bcc support to message saving. Before the value was just getting thrown away.
- Fixes issue clicking some urls.
- Added conditional forward rule with retry.
- Fix for minor issue when saving and the window height/width is saved incorrectly.

## Papercut v4.4.0.0 [2015-06-25]

- Improvement: #9864 “Log View” added to show all internal logging information for that session.
- Fixed: #9874 Message loading exception was not properly handled causing an unhandled exception and failure.
- Fixed: #9872 On some systems there were permissions issues accessing the IP addresses for the local system causing an unhandled exception and failure.

Thanks to [Jstedfast](https://github.com/jstedfast) (author of [MimeKit](https://github.com/jstedfast/mailkit)) for his contribution:

- Rewrote and improved the logic that renders the email HTML.

Thanks to MikeWill34 for his contributions:

- Fixed: #9870 When Aero is disabled (on servers, for example), the windows didn’t have a drop shadow. Now they have a solid border.
  - Fixed: Mark of the Web “ActiveX” security warning on email display.
  - Improvement: Upgraded to Calburn Micro v2.0.

## Papercut v4.3.0.0 [2014-11-05]

- Improvement: “Raw” message view re-added back as a view of the message data using AvalonEdit control for speed.

## Papercut v4.2.1.0 [2014-10-11]

- Fixed: #9861 Exception if the specified file name for a mime part was duplicate.
- Added: Web links in emails are launched in default browser. (Thanks Jamie Humphries!)
- Added: Conditional Forward (RegEx) Rule based on body or headers.
- Fixed: Added the "Mark-of-web" for the email viewer to remove IE security warnings.
- Fixed: #9863 Papercut.Service was not correctly reporting it’s incoming mail directory to Papercut.Client.

## Papercut v4.2.0.0 [2014-8-23]

- Fixed: #9859 Now using <pre> tag when displaying the text email so that carriage returns/linefeeds are displayed.
- Fixed: #9858 Now won’t close the app when failing to delete a message. Displays the reason for the failure as well.
- Improvement: Increased the robustness and error handling of the SMTP FIle Receiving.
- Improvement: Now validates the existence of and creates (if necessary) the Default Message Save Path directory.
- Improvement: Improved the loading so that it catches all assembly loading errors and attempts to write them to the Event Log in case app load is failing.
- Changed: Set the protocol logging to "Verbose".
- Changed: Papercut.Service default save location now defaults to %BaseDirectory%\Incoming.
- Added: Remove the "read-only" flag from the message file when attempting to delete.
- Added: Example Papercut.Service.json file with comments to explain the settings.

## Papercut v4.1.0.0 [2014-8-13]

- Fixed: #9851 Exception on TCP/IP port binding failure.

## Papercut v4.0.0.0 [2014-7-24]

- Added: Automatic “rules” system and configuration. Currently only supports a forward rule. But unlimited forwards can be specified.
- Added: “Loading” UI
- Added: Save window height/width.
- Added support for rules to the backend service. Rules are configured by the front-end and pushed to the backend service automatically.
- Switched to using MailKit instead of custom Smtp Client for additional options it offers.
- Added authentication support to the forward rule.
- Issue #9852: Converted Papercut.Service to use a json settings file. Papercut Client/UI will continue to use the .NET settings system do it it's complex system of overrides based on the current user account.
- Improvement: Now properly disables the Message View if it’s disabled.
- Improvement:  UI consistency -- added one place for Option and Exit links on the main UI.
- Improvement: Added "Delete (count)" to the delete button.
- Fixed: Issue #9849 – Null Reference in the Attachment/Mime Section
- Improvement: SMTP Server failure handling and added additional logging to help with issue #9851.

## Papercut v3.0.0.0 [2014-6-8]

<p style="border: #000 1px solid; margin:4px; padding: 4px; width:50%;background-color: #A6A6A6">
<b>Papercut</b> has switched to semantic versioning! That means you will have to uninstall old "clickonce" versions to get the latest as it will see it as an older version.
</p>

- Modern UI
- MVVM Architecture
- Watch Directories for New Messages
- Optional Backend Papercut Service
- Load on Windows Startup
- Attachments/Mime Sections

## Papercut 2014-5-1

- Fixed: Message list box scrolling caused unhandled exception.

## Papercut v2014-3-13

- Fixed: Converted back to .NET v4 so that XP users are supported.
- Fixed: Running papercut under SYSTEM account will now store messages in the application base directory instead of the \User\AppData\Papercut directory.
- Change: Using MimeKitLite instead of full MimeKit.

## Papercut v2014-3-8

- Change: Application now using the excellent [MimeKit](https://github.com/jstedfast/mimekit) library. Faster and better support for mime types.
- Change: Removed the the slow and annoying "raw view" and added "header view.”
- Change: Removed the Redundant "Html" view and added the "Text" view.
- Change: Changed "Close" to "Exit" as the close or minimize window button has the close functionality. It's nice to be able to exit Papercut from the main app window.
- Feature: Thanks to a little assistance from this answer on stack overflow (<http://stackoverflow.com/questions/14103159/previewmouseleftbuttondown-interferes-with-clic-selection>).
- Finally implemented that drag&drop message file feature. Now you can drag and drop a message file.
- Change: Saves and loads message in AppData\Papercut.
- Feature: Now you can delete a Message with the Delete Key (#9835) - message content from last message is now correctly cleared (#9840)
- Feature: Changed Processing to Buffered File output for speed, etc.
- Fixed: Issue #6026 -- Supports "Minimize on Close" option.
- Feature: Added CC and BCC to field list aka issue #9836.
- Feature: Added support for "dot stuffing", per RFC 2821, section 4.5.2.
- Fixed: FormatException on empty ReplyTo
- Fixed: fixed crash on start when there is an email with 0 byte.
- Fixed: Issue with email address parsing.