[Transactional Email] - Low IP reputation with Microsoft servers

Incident Report for Scaleway

Resolved

Customers may have experienced delays when sending emails to Microsoft domains (Outlook, MSN, Hotmail) due to temporary rate limiting. The issue has been resolved and email delivery should now be operating normally.

Posted Apr 10, 2026 - 09:51 CEST

Identified

We are noticing an increase in issues with Microsoft, with the message: "temporarily rate limited due to IP reputation."
Our team is already taking action to mitigate the issue, but you may notice some delays and retries when sending to Outlook, MSN, or Hotmail.
Microsoft has acknowledged the issue and is currently investigating on their side.

Posted Feb 27, 2026 - 10:33 CET

This incident affected: Elements - Products (Transactional Email).