Last Tested: Jun 24, 2019
This can be done from the Admin > Custom Welcome Email Page!
- The subject mentions Looker and is NOT customizable.
- The email is completely static - no Liquid or other dynamic-ness.
- Several HTML tags are not allowed (and they aren't the same ones we sanitize in LookML). Fortunately, they will be auto-stripped rather than ignored so it should be clear if a tag isn't allowed.