The moment you've waited for has arrived! Wez has finished the initial implementation of our new Traffic Shaping Automation functionality, and we could use your help with testing.
Please see https://docs.kumomta.com/userguide/configuration/trafficshapingautomation/ and grab the latest dev release.
Also, a reminder that https://github.com/KumoCorp/kumomta/blob/main/assets/policy-extras/shaping.toml is meant to be a community-maintained set of traffic shaping rules, both static and automated, please feel free to submit pull requests.