(date)
Mail Preference Service
c/o Direct Marketing Association
P.O. Box 9008
Farmingdale, NY 11735-9008
To whom it may concern:
I am writing to register with your Mail Preference Service. Please inform your members that I do not want my name sold to any company for the purpose of placing me on the mailing list and sending me advertising mail.
In addition, I would like my name removed from all existing lists.
Thank you very much for your help.
Sincerely,
(your name)
(your address)