Deliverability and consent
Learn how to send responsibly with verified domains, consent, and suppressions.
Understand transactional vs marketing email
Choose the right sending mode, understand its consent and suppression checks, and distinguish broadcasts, API templates and workflows.
Read guideHow unsubscribes and preferences work
Learn how one-click unsubscribe, topic and channel opt-out, the public preferences page, and resubscribing keep your contacts in control of what they receive.
Read guideManage suppressions
Learn what suppressions are, why they apply to an address rather than a contact, which sends they block, and how to suppress or unsuppress an address.
Read guide