How do ESPs maintain compliance (CAN-SPAM, GDPR, etc.)?

ESPs implement compliance through required features, policy enforcement, and customer guidance. They can't control sender behavior completely but create frameworks making compliance easier and violations harder.

Technical features include: required unsubscribe links, physical address inclusion, preference centers, consent tracking, data export capabilities, and suppression list management. These features help senders meet legal requirements without manual implementation.

Policy enforcement includes: terms of service prohibiting purchased lists, content restrictions, consent documentation requirements, and data processing agreements for GDPR. ESPs also provide documentation, guidance, and support to help customers understand compliance obligations. Ultimate responsibility remains with senders.