The Notice of Vehicle Insurance Status is a legitimate notification approved by the State of Utah. We strongly recommend that you reply to this notice with immediacy in order to avoid vehicle registration revocation.
Ignoring the notice because you believe it is a scam will not stop this process. Therefore, there are a couple of things you can do to establish the legitimacy of the notice.
First, you can verify that the notice you received looks like the State-approved Notice of Vehicle Insurance Status. You can verify the format of the First Notice here
and the format of the Final Notice here
Also, you can visit this Utah Department of Motor Vehicles (DMV) web page
that talks about Insure-Rite and insurance requirements for all vehicle owners in the State of Utah.
One last thing you can do is to call DMV directly and ask about the legitimacy of the notice you received.