Outage in Mailchimp
Campaigns not sending as expected
Resolved Major
April 14, 2026 - Started 27 days ago
- Lasted about 19 hours
Incident Report
Summary AI Generated
Mailchimp experienced a major incident where email campaigns appeared to be sending in the system but were not actually being delivered to recipients. The issue affected campaign delivery functionality for 18.6 hours. The engineering team investigated and resolved the problem that was preventing campaigns from sending despite showing a sending status.
We are currently aware of and investigating an issue with campaigns showing as sending but not being sent. Our Engineering team is working on a resolution and we will provide further updates as they become available.
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