About Postal
Postal is an open source mail delivery server that you run on your own infrastructure. It is meant for organizations that want to send email from their own servers rather than through a hosted email service.
What it does
The project packages the software for running a mail server, and this repository holds the tools for installing and running it. Installation is based on Docker, and helper scripts set up the prerequisite services on Ubuntu. The documentation covers how to configure domains, sending and the web interface after installation.
Key features
- Send email through your own mail server
- Docker-based setup for running the service
- Helper scripts to install prerequisites on Ubuntu
- Install helpers for Postal v2 and v3
- MIT licensed code on GitHub
Who it's for
Developers and system administrators who manage their own servers, companies that want control over outgoing mail, and self-hosting enthusiasts.
Pricing and good to know
Postal is open source under the MIT license and free to use, but you pay for the server and the time to run it. The repository warns that the prerequisite scripts install database services with insecure default passwords, so they are meant for testing and should be reviewed before any production use. Email deliverability also depends on correct domain records and reputation.
Highlights
- Send email through your own mail server
- Docker-based setup for running the service
- Helper scripts to install prerequisites on Ubuntu
- Install helpers for Postal v2 and v3
- MIT licensed code on GitHub
