I got the same one today. A few days ago I got a different one, also at the same email address I rarely use. That one was supposedly from Apple, but it was clearly fake due to lack of punctuation, poor grammar, spelling errors & the fact that it was sent to "AppleID Member" rather than my name. Here's what it said:
Dear AppleID Member,
We have noticed that your account information appears to be invalid and unverified.
The following changes to your Apple ID were made on 20 Sept 2018
- Date and time : 20 Sept 2018 3:18 AM UTC
- Case ID : ID-66IS618
We need to verify your account information in order for you to keep continue using your Apple ID Account You need to sign and verify it as soon as possible, you should do this soon because disabled accounts are eventually deleted along emails, iCloud, and other data stored with Apple
Thank you for your continued loyalty and support
Sincerely,
Apple Support