Since 5:30PM UTC, you may not have been able to deliver emails sent through our Automation tool, or you may have experience a brief period where emails were sent in duplicate. Please rest assured that our technical team is already hard at work resolving the issue.
We will update you here again the moment we have more information.
If you have urgent questions about this, our customer support team is here to help. You can contact us at https://www.mailjet.com/support/ticket/