Hello, daisyrascal.
Each QuickBooks product has its own email address. If it's from QuickBooks Online, the sender should be quickbooks@notification.intuit.com.
Could you please tell me if this is the sender of the invoice you received? Any information will help me determine if the sender is legitimate. I also encourage you to read this article for the email addresses from Intuit QuickBooks: Receive important email messages from Intuit.
You can also send us a screenshot of the invoice mentioned by Fiat Lux - ASIA, but please remove any sensitive information for your own safety. This way, we'll know if it's from Intuit QuickBooks.
I'm also adding this resource for more insights about emails in QuickBooks Online: All About Emails in QuickBooks Online.
I'll keep an eye out for your response; please include any additional information below if you require further QuickBooks Online assistance. I'm always available to assist you.
