Royal Mail Junk mail opt-out

Only stuff that comes through mail is things which you asked for, catalogues or newsletters from people you have worked with or purchased things from. You can get rid of these by asking the relevant senders.

This is plain wrong.

Royal Mail themselves deliver junk mail - it says so on the items! Opt-out and they stop doing so.

The hand-delivered stuff like pizza sheets can be reduced by a NO JUNK MAIL sign and the odd threat when the they still post the shit through your mailbox and you happen to be home.