Mandrill

Mandrill is Mailchimp's transactional email service designed for sending automated, one-to-one emails triggered by user actions such as password resets, order confirmations, and account notifications. Originally a standalone service, Mandrill is now integrated as Mailchimp Transactional Email, available as an add-on to Mailchimp's Standard and Premium plans, leveraging Mailchimp's delivery infrastructure and 20+ years of email experience.

The platform offers developer-focused features including robust APIs, SMTP relay service, advanced personalization with conditional content, real-time analytics, webhook integration, and A/B testing capabilities. Features include fast delivery (average 1.79 seconds), dedicated IP pools, custom domain support, automatic spam loop registration, and comprehensive tracking with detailed logs. Mandrill integrates seamlessly with applications through REST APIs and provides extensive technical documentation for developers.

Ideal for developers, SaaS applications, and businesses requiring reliable transactional email delivery rather than marketing campaigns, Mandrill serves organizations that need to send time-sensitive, event-driven emails at scale. The platform is particularly valuable for e-commerce sites, applications, and services requiring automated notifications, confirmations, and alerts with enterprise-grade deliverability and detailed analytics for transactional communications.