Normal text size Very large text size Afew months back I conducted a simple experiment. I posted a letter to a friend living just a 15-minute drive away. She received it on Friday. It took five days for the mail to get through, despite the envelope having a âPriorityâ sticker. (I know these stickers are redundant, but I had a couple left over, so it seemed worth trying.) Soon afterwards, I read a âLetter to the Editorâ from a bloke whoâd sent one to himself: the result was similar. And I bet he emailed â not posted â his letter to the Ed.