I get updates from Experian and Exquifax quite frequently. Nothing to worry about. I wouldn’t respond to anything from the email, but you can always check you accounts at both independent of the email. Typically it’s just to report your credit rating has increased or that your score has improved.
Smells like Nigerians... their kind of scam. The refund and IRS scams that demand phone contact, that’s the Currys. The ones that do not require phone contact are handled by the Nigerian chimps. They kind of split up the crime like the Penquin and the Riddler