Why compliance matters
Notification systems must obey laws like CAN SPAM, GDPR, and carrier rules. Ignoring an unsubscribe is not just rude; it risks fines and blacklisting that hurt all your mail.
Required mechanisms
- Marketing email must include a working unsubscribe link, often one click.
- Opt out must be honored promptly, within the legal window.
- A suppression list records addresses and numbers that must never be contacted again for that category.
Enforcing globally
The suppression list is checked at send time, the same place preferences are enforced, so a single opt out blocks every future attempt across all producers.
Audit trail
Regulators expect proof, so the service logs consent and opt out events with timestamps to show compliance if challenged.
Key idea
Unsubscribe compliance enforces a global suppression list and one click opt out at send time with an audit trail for regulators.