Microsoft have confirmed that this incident is now resolved and emails sent to and from users with Microsoft hosted domains should no longer experience delays.
Posted Sep 04, 2026 - 17:50 BST
Investigating
Microsoft is currently experiencing an active service incident (tracked as EX1467029) affecting Exchange Online, causing delays sending and receiving emails to and from external domains.
If you use a Microsoft-hosted email address (for example Outlook, Hotmail, or a work email on Microsoft 365), you may see delays in emails to or from our teams or those sent from GovernorHub while this is ongoing. Please do not re-try sending emails at this time.
We will continue to monitor Microsoft's status page for any further updates.