MailChimp is required to enforce spam laws. This means you must include an unsubscribe link in your email campaigns. A spotty unsubscribe process can impact deliverability rates, and we want to make sure your emails reach their recipients.
It's not just that an unsubscribe link is a requirement of the CAN-SPAM act. As a bulk delivery service, ISPs require us to manage your lists in a specific way, so we have to be able to:
- Handle and remove unsubscribes from your list automatically.
- Process bounce records.
- Report abuse and other information to ISP feedback loops. ISPs closely monitor how many unsubscribes occur. If an ISP sees too many, it can lead to deliverability issues for your account and other MailChimp users accounts.