Eletype offers Slack monitoring for Mailchimp: Daily Campaign Summary and Real-time Notifications.
Daily Campaign Summary
Every morning you will receive a high-level summary of all campaigns in addition to specifics on the most recent campaign. Most recent campaigns also include relevant industry benchmarks and campaign advice.
You will receive a notification for every new Subscriber, Unsubscribe, Spam and Campaign Launched.
Find us in the Mailchimp Integration Directory here.