1) Inbox clutter 2) Letters for occupants 3) Many ad circulars 4) Post office onslaught 5) Postal nuisance 6) Scrap armor 7) Some letters 8) Unsolicited commercial mail 
Cover for 3rd Bass` 1991 single, Pop Goes The Weasel. source url = http://www.thirdbass.net/albums/photos/photo_13.html Fair use in the 3rd Bass article. ...[book] Junk Mail is a 1995 book by Will Self published by Bloomsbury Press. It features pieces of writing centred on drugs and the counter-culture, taken from writing in newspapers such as the Guardian, the Observer and the Independent. It incorporates a wide range of writing, such as an article on drug dealers in the East End of London cal...
Junk mail is British slang for unsolicited advertising sent by post.
[n] - third-class mail consisting of advertising and often addressed to `resident` or `occupant`
noun third-class mail consisting of advertising and often addressed to `resident` or `occupant`
unsolicited commercial mail.