You probably found this page because one of our subscribers used MailChimp to send you an email campaign, and you traced a link in the email back here to investigate. MailChimp is an email-marketing service that serves more than 7 million companies of all shapes and sizes, from all over the world. We send more than 500 million emails every day, and we help our customers comply with spam laws and best practices so they can get their campaigns into their subscribers' inboxes.