The email says that Covid test results are available from formuladx and provides a link. This is not the company the university uses. Beware of fake test results! Emails like this often link to websites used to steal personal information.
See U-M COVID-19 Sampling & Tracking Program for details about how actual U-M weekly test results are sent and accessed. Those who have tests using this university program can expect to receive emails from LynxDX when their test results are available. For information about this and other Covid-related scams, see Coronavirus/COVID-19 Scams.