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We are continuing to monitor the situation as it develops. AWS team expects to see improvements to core services in the coming hours.

We are providing an update on the disruption affecting the Middle East (UAE) (me-central-1) Region. After a thorough assessment, we have determined that we are unable to restore access to the resources and data hosted exclusively in the mec1-az2 Availability Zone. We continue to work on recovering regional resources, as well as zonal resources hosted in the other affected Availability Zones (mec1-az1 and mec1-az3). Since the disruption began in March, most customers have been able to re-establish their operations in other Regions by restoring backups or copying data that remained accessible. AWS Support remains available to help customers who need assistance moving their applications to alternate Regions. We remain committed to supporting our customers in the UAE. We are working on replacing the affected infrastructure and will provide an update on the restoration of our services in the coming months. We have notified the relevant authorities and continue to work with them toward that goal.

A fix has been implemented and we are monitoring the results.

Title: Users may be unable to reply or reply-all to email messages sent to Microsoft 365 groups in Exchange Online User impact: Users may be unable to reply or reply-all to email messages sent to Microsoft 365 groups in Exchange Online. More info: As a temporary alternative, impacted users may reply or reply all to email messages through user inboxes. Current status: We've initialized our fix deployment to the affected environment and anticipate the impact should be fully remediated by our next scheduled update. Scope of impact: This issue impacts any user attempting to reply or reply-all to email messages sent to Microsoft 365 groups in Exchange Online. This information may be updated as our investigation continues. Next update by: Tuesday, October 6, 2026, at 1:00 AM UTC

We are continuing to work with our underlying provider to address the subset of remaining devices that are showing offline. We will keep you informed with timely updates as progress is made. Thank you for your patience.