Long before the advent of telephones and e-mail, postal delivery was the primary way in which people stayed in touch -- and they depended on its frequency and regularity. By the end of the 19th century in London, mail was delivered to houses as often as 12 times a day. The first delivery typically began at about 7:30 a.m. and the last one at about 7:30 p.m. “In London, people complained if a letter didn’t arrive in a couple of hours,” said Catherine J. Golden, the author of Posting It: The Victorian Revolution in Letter Writing.
If only junk mail could be refused: