Authentication of the email "Your domain registration requires renewal to avoid service interruption."

To determine if the email you received is authentic, you should check the sender's email address. Microsoft support uses specific domains to send emails, including:

1. microsoft.com
2. microsoftsupport.com
3. mail.support.microsoft.com

Since the email you received is from ******@mail.support.microsoft.com, it appears to be from a legitimate Microsoft support domain. However, be cautious, as phishing attempts can sometimes use similar-looking addresses.

If you suspect the email might be a phishing attempt, do not click on any links or open attachments. Instead, you can report the email to Microsoft and follow their guidelines for handling suspicious emails. If you believe the email is genuine and you need to resolve the domain registration issue, follow the instructions provided in the email carefully, ensuring that you are on the official Microsoft website before entering any personal information.

References:

• How do I know if an email from Microsoft support is genuine?