This is a new one. I'm not a RingCentral customer so this was easy to spot but I know some here may be customers. The VIEW FAX MESSAGE link points to "catalynetics[dot]com" and the GET STARTED link to "glip[dot]com"
A real fax from RC wouldn't have that first link. It would have the following along with a PDF attachment --
I received this today --
Not a Liberty Mutual customer, so clearly spam.
I have received USPS and UPS ones lately. Normals would be totally fooled by them. :(