Check the person out with references and the Police or Chamber Of Commerce. It's best to deal with someone you know. Beware of winning free vacations for contests you never entered. For example, ask to see written information before you buy. Before you call, make sure you need the information.
Mail fraud is a federal crime.
Contact the Postal Inspector if you think you've been a victim. Don't take chances on expensive, quack medicines or mail-order remedies. Fast-buck artists won't think twice about cashing in on your generosity. Check your library for a report book on charities published by the Secretary of State's office. Improve sexual relations.