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