Currently Fleet lists any MDM that isn't listed here as Unknown.
This means that anyone using a custom domain for their MDM will be listed as "Unknown" in fleet. This is less than ideal as it induces a slight panic when you see multiple devices with an unknown MDM.
Potential solutions
As mentioned by mostlikelee on MacAdmins Slack returning Unknown (yourcustomdomain.com)
Just returning the customdomain yourcustomdomain.com
Problem
Currently Fleet lists any MDM that isn't listed here as Unknown.
This means that anyone using a custom domain for their MDM will be listed as "Unknown" in fleet. This is less than ideal as it induces a slight panic when you see multiple devices with an unknown MDM.
Potential solutions
Unknown (yourcustomdomain.com)
yourcustomdomain.com