Unsubscribes and Do not contact

Every email has an unsubscribe link, and blocked people are never emailed.

Unsubscribe link

Every campaign email gets a small unsubscribe line and a one-click unsubscribe header. You can't turn them off. Laws and mail providers require them.

When someone unsubscribes, they land on Leads › Do not contact and are never emailed again.

Open Leads › Do not contact to block a person or a whole domain. You can also block a lead from its panel or from the inbox.

Allow again asks first. Emailing someone who unsubscribed can break anti-spam laws. Emailing an address that bounced hurts your reputation.