The MPS does not stop all junk mail. For other types of unwanted mail, deal with each mailer directly. In general, be aware that when you provide your name, address, phone number and other personal information, your name could end up on mailing lists. List your phone number and address in the phone book. Join or donate money to clubs, organizations or charities.
Many files are open to the public and are used by marketers to compile lists.
Though you generally cannot make public records private, you can write to companies that have put you on a mailing list and ask to be deleted. Your one call is shared with all three credit bureaus. The purpose of such contests is to compile names and addresses that can be used for other solicitations, such as fund raising or catalog offers. A federal law requires them to heed your request. Another way to reduce unwanted phone calls is to screen them with an answering machine.