B1UP Print & Delivery Issue: I have issues sending mails generated by B1P&D to the draft folder

Issue: After a mail generated to the draft folder are sent I get back that the mail could not be sent (bounce) but you get the error: "Delivery failure"

Reason: This is due to a change Microsoft did in Exchange 2013, if you use this or higher you need to go to Administration->Add-ons->B1 Usability Package->Module configuration->B1 Print and Delivery->Configuration and turn on option: Use Exchange 2013 compatible Outlook send method.