On April 27, Mandrill became a paid MailChimp add-on. More information about this transition is in this blog post.
Log in to Mandrill here.

Transactional Email for MailChimp

Mandrill is a transactional email API for MailChimp users. It's reliable, powerful, and ideal for sending data-driven emails, including targeted e-commerce and personalized one-to-one messages.

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Billions of emails delivered each month

More than 10 million people and businesses around the world use MailChimp. Built on the same powerful infrastructure as MailChimp, Mandrill delivers transactional emails in seconds.

  • API Uptime


  • SMTP Uptime


  • API Error Rate


Status Updated: Feb 22, 2016 15:45 UTC

Easy to integrate

Rapid SMTP and API integration

Don't spend all day wiring up your own bulky custom solution. Get started with Mandrill's SMTP or API integration in no time.

Try Mandrill

Send a Message

  include_once "swift_required.php";


  $transport = Swift_SmtpTransport::newInstance('smtp.mandrillapp.com', 587);
  $swift = Swift_Mailer::newInstance($transport);



Mandrill is a transactional email API created by MailChimp, a company with more than 10 years of experience building a robust email marketing platform. MailChimp sends 20 billion emails every month for more than 10 million users.