1618
And it'll be the most subtle, unassuming envelope too.
(lemmy.world)
People tweeting stuff. We allow tweets from anyone.
RULES:
Canada too. My wife was a letter carrier for a few years, she would make a note of non-admail boxes if someone put a notification on the box or sent in a form to opt-out, and put a red sticker on their sort slot at the depot. Then when she delivered it would only be addressed mail that went to that box.