Multimedia Lists is an online direct mailing service that offers businesses of all sizes the ability to send marketing mail, business mail, and personal mail. They have a comprehensive and accurate business contact database for various industries. They... Use the "Do Not Sell My Personal Information" link at the bottom of the Multimedia Lists website (no direct URL is given in the policy) and submit your name and current address; this removes you from their marketing database and adds you to a suppression list. A phone option exists at 1-800-239-5478, though the company recommends the web link, and they report averaging about 7 days to complete opt-out/deletion requests. Note they may ask you to verify your identity (e.g., a verified email response), and if they only act as a service provider for a client, your request gets forwarded to that client.