Papercut SMTP

Papercut SMTP 7.8.0

Standalone SMTP server designed for viewing received messages

  • By Changemaker Studios
  • Open Source
  • Updated Aug 15, 2026
Download for Windows

About Papercut SMTP

Papercut SMTP is a 2-in-1 quick email viewer AND built-in SMTP server designed for development.
It allows developers to safely test email functionality without risk of emails being sent to real recipients.

Features:

  • Desktop WPF application for viewing emails
  • Built-in SMTP server (receive-only)
  • Full email inspection (body, HTML, headers, attachments, raw encoded bits)
  • Support for running as a minimized tray application with notifications
  • WebView2-based HTML email rendering

What's new in 7.8.0

https://github.com/ChangemakerStudios/Papercut-SMTP/releases/tag/7.8.0

Full release notes »

Technical details

PublisherChangemaker Studios
AuthorKen Robertson & Jaben Cargman
Version7.8.0
Release date2026-08-15
LicenseApache-2.0
Installer typeexe
Architecturex64, x86, arm64
Package IDChangemakerStudios.Papercut-SMTP

Links & install command

Install Papercut SMTP from the command line with Windows Package Manager (winget):

winget install --id=ChangemakerStudios.Papercut-SMTP -e

smtpemaildevelopmenttestingdeveloper-toolsmail-server

Older versions

  • 7.7.2
  • 7.6.2
  • 7.5.1
  • 7.5.0
  • 7.0.2
  • 7.0.1
  • 7.0.0