passing variable to anti spam mailto script

Hello All, What is the best way (or opinions rather) to pass variables to a anti spam script. This is used in place of mailto links in webpages, but am looking for any simple way to pass information so more than one address can easily be used in the script, I could use mysql or other, however want to have something easier than this. Suggestions ? (please CC me if mailing to the list) , any examples ? <?PHP $mailto = 'mailto:address@iemailworld.com'; header("Location: $mailto"); ?> TIA