Versions:
Papercut SMTP 7.6.2, published by PapercutSMTP, is a lightweight, open-source development tool that combines a local SMTP listener with an instant desktop viewer, giving engineers, QA teams, and system integrators a friction-free way to intercept and inspect every byte of outgoing e-mail without ever forwarding it to the outside world. Positioned in the Mail Servers / Testing & Debugging category, the application binds to any available port on the loopback interface and renders the complete message—plain-text and HTML bodies, RFC-822 headers, MIME parts, base-64 attachments, and raw encoded content—in a single, searchable window. Because it never relays traffic, Papercut eliminates the risk of accidental spam or credential leaks while still exposing the exact formatting and encoding behaviour of the code under test. Developers use it to verify transactional templates, confirm that password-reset links render correctly, capture messages generated by CI pipelines, or simply replace the tedious “send to Gmail and hope” workflow with an immediate, offline feedback loop. The tray resident mode can auto-start with Windows and silently collect traffic, popping up a balloon tip only when a new arrival lands; conversation history persists across restarts, so regression tests can be replayed without re-sending. Six major versions have been released since the project’s inception, each refining the UI for high-DPI monitors, adding JSON and EML export options, and tightening IPv6 compatibility, while remaining portable and configuration-free. The software is available for free on get.nero.com, with downloads provided via trusted Windows package sources (e.g. winget), always delivering the latest version, and supporting batch installation of multiple applications.
Tags: