Message server
A simple server that accepts incoming message sessions and handles the usual send/receive steps and optional test authentication.
Post Master
A dependable local email tester that shows what's happening with messages so teams can diagnose issues quickly.
Clear message exchange and easy diagnostics
Post Master gives you a controlled email environment for local testing: sending messages, simulating authentication, and storing transactions in a readable format. It includes a simple server, a test client, and a monitor that can record exchanges for review.
Overview
Post Master provides a small, self-contained environment to send and inspect email traffic locally. You can compose messages, simulate delivery and authentication, and view detailed, easy-to-read logs that show each step of a message's journey.
Core components
Test client
A small client that reads message files and sends them to the server for testing and verification.
Monitor
An optional component that sits between client and server to record exchanges for auditing and troubleshooting.
Key features
- Clear, chronological logs of every message exchange.
- Support for simple challenge-response checks to test authentication.
- Messages are saved in a readable transaction format for review.
- Configurable ports and folders so you can run tests locally.
- Optional multi-process mode to simulate several clients at once.
How it works
Privacy & safety
Post Master aims to avoid keeping data longer than needed. Transaction files are written in a readable format and temporary state can be cleared automatically. Authentication details are used only for session checks; production deployments should use full transport encryption for real-world security.
Setup
Language
Written in Python to keep the tools simple and easy to run locally.
Networking
Uses straightforward network connections so common tools can be used for testing and inspection.
Authentication checks
Includes simple challenge-response checks to test authentication flows during diagnostics.
