Installing on Linux
Pre-built releases are available for CentOS 7, Rocky Linux 8/9, and Ubuntu 20.04/22.04.
A repository is provided to ease installation on supported platforms.
The install instructions for supported platforms are shown below. If your platform is not listed, you can build from source.
Note
Note that Red Hat full support for RHEL 7 ended in August 2019 and CentOS 7 full support ended in August 2020. We ended automated builds for RHEL 7 with the 2023.08.22-4d895015 release.
We recommend upgrading to a newer OS as soon as possible.
$ sudo apt install -y curl gnupg ca-certificates
$ curl -fsSL https://openrepo.kumomta.com/kumomta-ubuntu-22/public.gpg | sudo gpg --yes --dearmor -o /usr/share/keyrings/kumomta.gpg
$ curl -fsSL https://openrepo.kumomta.com/files/kumomta-ubuntu22.list | sudo tee /etc/apt/sources.list.d/kumomta.list > /dev/null
$ sudo apt update
$ sudo apt install -y kumomta
$ sudo apt install -y curl gnupg ca-certificates
$ curl -fsSL https://openrepo.kumomta.com/kumomta-ubuntu-20/public.gpg | sudo gpg --yes --dearmor -o /usr/share/keyrings/kumomta.gpg
$ curl -fsSL https://openrepo.kumomta.com/files/kumomta-ubuntu20.list | sudo tee /etc/apt/sources.list.d/kumomta.list > /dev/null
$ sudo apt update
$ sudo apt install -y kumomta
Installing from a Dev Repository
If you want to test the latest additions and improvements to KumoMTA, you can instead install from the dev repository on your platform of choice. The dev repository is rebuilt after each commit to the KumoMTA repository, which means the dev repository will always include the latest changes.
Warning
While we do our best to test all commits, dev repositories should never be installed in production environments.
Note
Note that Red Hat full support for RHEL 7 ended in August 2019 and CentOS 7 full support ended in August 2020.
We recommend upgrading to a newer OS as soon as possible.
$ sudo apt install -y curl gnupg ca-certificates
$ curl -fsSL https://openrepo.kumomta.com/kumomta-ubuntu-22/public.gpg | sudo gpg --yes --dearmor -o /usr/share/keyrings/kumomta.gpg
$ curl -fsSL https://openrepo.kumomta.com/files/kumomta-ubuntu22.list | sudo tee /etc/apt/sources.list.d/kumomta.list > /dev/null
$ sudo apt update
$ sudo apt install -y kumomta-dev
$ sudo apt install -y curl gnupg ca-certificates
$ curl -fsSL https://openrepo.kumomta.com/kumomta-ubuntu-20/public.gpg | sudo gpg --yes --dearmor -o /usr/share/keyrings/kumomta.gpg
$ curl -fsSL https://openrepo.kumomta.com/files/kumomta-ubuntu20.list | sudo tee /etc/apt/sources.list.d/kumomta.list > /dev/null
$ sudo apt update
$ sudo apt install -y kumomta-dev
The Initial Config File
KumoMTA is now installed, but it requires a configuration policy so it knows how to behave. The installer creates a minimal configuration policy file at /opt/kumomta/etc/policy/init.lua that enables basic localhost relaying and logging.
See the configuration chapter for more information on creating your own configuration policy.
Starting KumoMTA
To start KumoMTA using systemd, execute the following command:
For additional details on starting KumoMTA, including as a persistent service, see the Starting KumoMTA chapter.
Created: 2023-03-13