You can signup for a separate Melio account for free to integrate with QBO. You can get invoices sent directly to your Pay inbox. Melio will scan and automatically add your bill for you to review and pay.
https://affiliates.meliopayments.com/pricing
Important invoice requirements:
1. One invoice per file.
2. Invoice must be attached as JPEG/PNG/GIF/PDF to the email.
3. Maximum file size is 10MB.
Your Pay inbox email looks like this: [business name _4 random numbers]@invoicesmelio.com.
You can ask your vendor to send all invoices with the above requirements to that email address later. You can also ask vendor to cc each invoice to your own email domain for cross-checking if needed.