About smtp4dev desktop
smtp4dev - the fake smtp email server for development and testing
smtp4dev desktop 3.15.0
smtp4dev - the fake smtp email server for development and testing
- By Robert N Wood
- Open Source
- Updated Mar 3, 2026
What's new in 3.15.0
See full installation instructions and options
File Name | Description
-- | --
Winget package| Rnwood.Smtp4dev.Desktop Winget package (recommended easy option for Win10/11)
Winget package| Rnwood.Smtp4dev Winget package (Win10/11)
Rnwood.Smtp4dev-win-x64-3.15.0.zip | Windows x64 binary standalone - Server edition
Rnwood.Smtp4dev.Desktop-win-x64-3.15.0.zip | Windows x64 binary standalone - Desktop app edition.
Rnwood.Smtp4dev-win-arm64-3.15.0.zip | Windows ARM 64-bit binary standalone
Rnwood.Smtp4dev-linux-x64-3.15.0.zip | Linux x64 (Intel 64 bit) binary standalone
Rnwood.Smtp4dev-linux-musl-x64-3.15.0.zip | Linux MUSL x64 binary standalone for Linux distros using MUSL libc
Rnwood.Smtp4dev-noruntime-3.15.0.zip | Architecture independent version. Should run on any platform where the .NET 8.0 (or greater) runtime is installed
Docker images for Windows and Linux - How to use Docker image
.NET tool Rnwood.Smtp4dev 3.15.0 | .NET tool (recommended option for Mac OS) - How to use dotnet tool
Technical details
| Publisher | Robert N Wood |
|---|---|
| Version | 3.15.0 |
| Release date | 2026-03-03 |
| License | BSD-3-Clause |
| Installer type | zip |
| Architecture | x64 |
| Package ID | Rnwood.Smtp4dev.Desktop |
Install smtp4dev desktop from the command line
- Install with Windows Package Manager
winget install --id=Rnwood.Smtp4dev.Desktop -e- Update to the latest version
winget upgrade --id=Rnwood.Smtp4dev.Desktop -e- Uninstall
winget uninstall --id=Rnwood.Smtp4dev.Desktop -e
smtp4dev desktop version history
- 3.10.3
- 3.10.2
- 3.10.1
- 3.9.0
Frequently asked questions
Is smtp4dev desktop free?
Yes. smtp4dev desktop is free and open-source software released under the BSD-3-Clause license.
What is the latest version of smtp4dev desktop?
The latest version is 3.15.0, released on Mar 3, 2026.
Is it safe to download smtp4dev desktop?
The download button links to the official installer published on github.com, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with d791b5c3ad651cc7bc65b41b00f94d899dc8942526325046932d61afaf0e2f08.
Which Windows versions does smtp4dev desktop support?
smtp4dev desktop runs on Windows and is available for 64-bit (x64) systems.
How do I uninstall smtp4dev desktop?
Open Settings › Apps › Installed apps, find smtp4dev desktop and select Uninstall. From the command line, run winget uninstall --id=Rnwood.Smtp4dev.Desktop -e.
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