Quicken spoofing emails when sending invoices

Pleae don't comment stating that you can save the file as a pdf and then mail directly. Mailing directly goes back to the 90's, but what you don't do is do classic spoofing. [Removed - Speculation/Inaccurate] Quicken MUST fix the spoofing. We pay for the this product and you need to come up with different mail options to send invoices. But sending on my behalf will fail always because of these must needed changes to help stop spoofing.

New Gmail & Yahoo Sender Requirements - What are they? - MxToolbox

Why are they and everyone else doing this, to help prevent bad guys from spoofing. Or doing what quicken is now doing. Please don't close this, for business users we need to be able to send invoices and not through your servers.

Please refer to this link:

Email address spoofing by Quicken when sending out Invoices - flagged as Spam. (edit) — Quicken