It would be great to be able to clean these areas out periodically without having to resort to printing to PDF or taking outlook offline
Hi Sharon_K
This particular idea has been marked as under consideration. At stage we don't have a time frame for when this particular idea will be placed into development and implemented into the product however we are still encouraging members of the MYOB Community that would like to see this feature in potential future updates to vote and comment for it.
As you are referring to receipts you also might want to show your support for Delivery Status for Receipts which relates to the ability to select a delivery status of receipts - for example setting them to be To be Printed or Already Printed.