Can I have the envelope custom printed? 16 July 2026 12:55 Updated No, not yet. This service is currently in development. Related articles What is the maximum number of pages a single shipment to one recipient may contain? Can I also send registered mail or mail merges? What does the physically delivered letter look like? Can I get a preview? How do I correctly position the recipient address in the document? Which documents can I send with SmartSend and what requirements apply?