mcEmails is a Email Management System designed to help create, track, and deliver email campaigns for the Millennium Cohort and Family Cohort studies. It consists of a graphical management interface that provides editing interfaces for templates as well as email list management. It processes bounce emails and unsubscribes to meet federal requirements and to improve deliverability.

Additionally, it serves as an API endpoint for sending one-off emails using existing templates. Campaigns can be grouped together and scheduled simultaneously. Templates support tracking links and images to help support marketing efforts.