LSC Marketing Group is a data-driven relationship management company with over 40 years of experience in providing digital and email marketing services. They offer a range of services including website design, email automation, PPC campaigns, SEO, and ... LSC (List Services Corporation) has no self-service opt-out form — you must e-mail privacy@listservices.com or mail their Privacy Team in Bethel, CT and state that you want to be removed from e-mail, phone, fax, or mail contact. Access to your data or corrections require a written request. They also suggest registering with DMA preference services and donotcall.gov, but those are third-party lists, not an LSC deletion.