The emails came from a “Non official address” such as notoficationalert@ui.nv.gov, no one should reply or if possible open the email.
The email starts off by sending notice of bring from the Nevada Department of Employment, Training and Rehabilitation and as a security measure regarding a recent upgrade there are issues with emails.
It then asks the recipient to reply of acknowledgement and wait further instructions.
Of course should a recipient reply to the email, some sort of instructions would be sent to obtain data or personal information to be used for fraud purposes.