Refined Alerts, SMTP Events, and Centralized Documentation

We have a few refinements for you this week. SMTP events give you all the detail on individual email delivery, alerts have been polished to have more options, and centralized documentation makes it easier to see everything Mandrill can do for you in one place.

SMTP Events

In addition to deferral details launched last week, the activity log now includes detailed SMTP information for delivered messages, too. Each log entry includes a timestamp and the response message we received from the mail server where we tried to deliver the message. These logs help you confirm when a receiving server accepted a message for delivery. They're also useful for debugging delivery problems that occur after messages have left our system, since ISPs and hosting providers often need diagnostic messages to track down what happened to a message after it entered their system.

Refined Alerts

Alerts and notification settings have been overhauled. There are new capabilities, new alerts, and a new look. Instead of all alerts going to the contact address on the account, you can specify custom email addresses to receive each alert, so your developers can be alerted of technical issues and your accounting team can be alerted of billing issues. Alerts can be temporarily turned off to stop alert emails while you fix a problem. We've also added four more alert types: tag reputation, webhook failure, account balance, and backlog queue size.

Centralized Documentation

Documentation is key for helping new users get set up and for existing users to reference or troubleshoot issues. Between our API docs, SMTP docs, knowledge base, integrations, and FAQs, Mandrill has a lot of documentation. Some of it, like the API documentation, is automatically generated as we make changes to the application. With all the different types of documentation, our docs have gotten a bit spread out and hard for users to find and navigate. This week, we've started the process of giving our documentation a single home. If you head over to, you're now able to get to all of our documentation from one place. We'll continue to improve this section over the next few weeks, so if you have any specific ideas or problems, please let us know.