Currently e-receipts sent from the Raiser's Edge Mail function are not secured. It would be great and more compliant with CRA to see this feature updated to include secure PDF's. At this time anyone with Adobe Software that has the edit feature can easily make changes to these tax receipts. It's such an important and valuable feature to issue e-receipts, adding this security layer will improve this.
Other receipting platforms do provide secure receipts, so this is possible, hopefully it can be for Raiser's Edge too. Thank you for your consideration.