Emails coming from QuickBooks Online or Intuit are usually sent through this address: email@example.com.
If you’re receiving a suspicious email, I suggest not opening it to avoid getting harm to your account or computer. You can report it to our Security Team's email address.
Also, please secure an antivirus program to your computer and make sure it's up to date so that it can detect any malware or viruses.
You can also contact our support team so they can check this for you.
You may also check out these articles for additional reference:
Count me in if you need anything else. I'll be here to help. Take care.