PO Emails on behalf of buyer is not being sent from Fusion - what could be the solution?

Summary:

POs are being submitted from Fusion and the PO emails generated after approval do not reach the supplier's GMail server. The reason is, the email is being considered as spoof email as it is being sent from a system (Fusion) with a users profile email address and not the system's email address directly.

Content (required):

POs are being submitted from Fusion and the PO emails generated after approval do not reach the supplier's GMail server. The reason is, the email is being considered as spoof email as it is being sent from a system with a users profile email address.