Fasthosts incident
Sending email to Microsoft-hosted email addresses may not be possible
Fasthosts experienced a major incident on February 17, 2026 affecting Sending Mail, lasting 9d 2h. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- identified Feb 17, 2026, 10:21 AM UTC
Some emails sent to Microsoft-hosted email addresses may be rejected due to Microsoft blocking some of our IP addresses. We are in contact with Microsoft to request de-listing. Please accept our apologies for any inconvenience you may be experiencing.
- identified Feb 17, 2026, 01:07 PM UTC
We have eliminated the disruption for some of those affected.
- identified Feb 19, 2026, 05:54 PM UTC
We have eliminated the disruption for almost everyone affected.
- monitoring Feb 24, 2026, 04:12 PM UTC
We apologise to customers who were affected by this disruption. We are working to ensure that similar issues do not occur in the future.
- resolved Feb 26, 2026, 12:23 PM UTC
The issue has been resolved. Thank you for your patience and understanding.