Service Alert: Microsoft Email Delivery Delays — November 12-13, 2026

Microsoft is currently experiencing a widespread outage affecting Outlook, Exchange Online, and other Microsoft 365 services. As a result, emails sent to recipients using these services may be delayed until Microsoft resolves the issue.

If your mailing list includes a significant number of Microsoft email users, you may notice temporarily lower open and click rates while deliveries are delayed.

There is no need to resend your campaign. Direct Mail will automatically retry temporarily delayed deliveries until Microsoft's servers are accepting mail again. No action is required on your part.

For updates, visit Microsoft's Service Status page or Microsoft 365 Status on X. We'll also update this notice as more information becomes available.

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Autoresponder

  1. About autoresponders
  2. About autoresponder reports
  3. Creating an autoresponder
  4. Editing an autoresponder
  5. Pausing an autoresponder
  6. Restarting a paused autoresponder
  7. Manually triggering an autoresponder
  8. Organizing your autoresponders into folders
  9. Using the "Adding a new address via the API" trigger
  10. Using the "Clicking a link in an email campaign" trigger
  11. Using the "Editing an address" trigger
  12. Using the "Opening an email campaign" trigger
  13. Using the "Subscribing to a mailing list" trigger
  14. Using the "Trigger after another autoresponder" trigger
  15. Using the "Trigger based on a date" trigger
  16. How autoresponder emails are billed
  17. Email Automation: How to Send Follow-Up Emails To Your SubscribersBlog