Exim
Message transfer agent (MTA) developed at the University of Cambridge.
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 Exim is developed elsewhere.
| Stars | not measured |
|---|---|
| Latest release | — |
| Repo updated | — |
| Licence | GPL-3.0 |
| Built with | C, deb |
Is Exim actively maintained?
We cannot measure this one. Exim is developed outside the platforms our data source collects activity from, and its repository lives at git.exim.org — 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 Exim actually does
Exim is a message transfer agent developed at the University of Cambridge for routing, delivering, and receiving electronic mail. As a mail transfer agent, it handles the core underlying infrastructure required to move email messages across networks between servers. It is traditionally configured using plain text configuration files to manage mail delivery rules and policies.
Best fit: It is a suitable choice for systems administrators requiring a traditional mail transfer agent on Debian-based Linux distributions who are comfortable with complex text-based configuration.
Worth knowing: Configuring mail transfer agents involves a steep learning curve and significant operational risk if misconfigured, as errors can lead to open relays or rejected mail delivery. Additionally, the project lacks visible modern activity metrics in this directory, meaning you should verify its current upstream status before adoption.
Deployment notes
As a compiled C application distributed via deb packages, it typically integrates directly with standard system package managers on Linux servers. It generally requires persistent storage for mail queues and proper integration with system TLS certificates to handle encrypted mail transport securely.
Links
Exim as a replacement for
Alternatives to Exim
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A small and easy to configure SMTP and POP3 server for Windows and Linux.