kumomta/examples/single-node-docker/README.md

Single Node Docker Example

This directory contains a basic configuration that will spawn both kumod (the MTA process) and tsa-daemon (the traffic shaping automation daemon) from a single docker compose file.

Use this to start the daemons and view the logs:

$ docker compose up

The service will spawn and bind to port 25 on the host system.

You can then send mail on port 25, using swaks:

$ docker run --rm -it --net host nicolaka/netshoot \
    swaks -f user@example.com -t user@example.com \
    --server $HOSTNAME:25

View shaping rules applied to a domain:

$ docker exec -t kumod /opt/kumomta/sbin/resolve-shaping-domain example.com

Trace submissions in realtime:

$ docker exec -t kumod kcli trace-smtp-server