How To Address An Envelope Canada : How To Address An Envelope Photos Included / Aug 09, 2020 · to address an envelope for a personal letter, write the recipient's name on the first line and their street address or post office box on the second.. Box, and city, state and zip code. Addresses, they use postal codes instead of zip codes and require you to list the country name below the mailing address. Below that, write the city, province, and postal code in that order with no punctuation. There are lots of varieties in size and formats of a canada post prepaid envelope for shipping within canada, u.s, and other international destinations. Name, your company's name, street address or p.o.