DMA Mail Preference Service. Tired of having your mailbox crammed with ads and other mail you didn't ask for, like preapproved credit card applications?You may have to send postcards or fill out your own request forms. There's no way to stop all unwanted charity mail, but these tips can help: 1. Discard appeals that don't interest you. Please remove my name and address from your mailing list. Are you tired of unwanted mail? Have you ever returned from a vacation with a mound of mail and most of it is solicitations and credit card applications? Please list the address of the vehicle storage. Sign on the signature line in the.