People have been asking us about USCIS "warrant issued for background check" for failure to report a change of address by filing Form AR-11. While it is true that until you are naturalized, you are required to update your change of address each time within 10 days of moving; this email is a scam. DO NOT WORRY.
For instance, see the Header. It is NOT from a .Gov domain. I have reviewed the metadata as well.
The body of the mail looks like this.