EmailRelay

A small and easy to configure SMTP and POP3 server for Windows and Linux.

Unrated
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Unrated

Developed outside the platforms our data source measures, so there is no activity history to score. This says nothing about the project — many unrated projects are actively maintained.

Activity data

Not available for this project. Our source collects commit history from GitHub only, and EmailRelay is developed elsewhere.

Starsnot measured
Latest release—
Repo updated—
LicenceGPL-3.0
Built withC++

Is EmailRelay actively maintained?

We cannot measure this one. EmailRelay is developed outside the platforms our data source collects activity from, and its repository lives at sourceforge.net — so there is no commit history or release cadence here to score.

Read that as missing data, not as a warning. Several of the best-maintained projects in this catalogue are unrated for exactly this reason. To judge it, open the repository and look at the date of the most recent commit yourself.

What EmailRelay actually does

EmailRelay functions as a lightweight Simple Mail Transfer Protocol and Post Office Protocol server designed for Linux and Windows operating systems. It acts as an intermediary for message routing and delivery within local networks or between mail clients and upstream servers. The software is written in C++ and operates under the GPL-3.0 licence.

Best fit: This utility is a suitable fit if you need a straightforward, resource-efficient mail relay or proxy agent for a small-scale infrastructure without the complexity of larger MTA suites.

Worth knowing: Public repository activity indicators and release histories suggest low maintenance velocity, meaning you should be prepared to handle troubleshooting or patches independently. It also lacks the extensive ecosystem and documentation found in more prominent alternatives like Postfix or Exim.

Deployment notes

As a compiled C++ binary, it typically requires minimal runtime dependencies and does not usually demand a separate database engine for standard operation. You will need to manage persistent storage for spool directories and configure external TLS termination if encrypted transport is required.


EmailRelay as a replacement for


Alternatives to EmailRelay

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