Outage in Webroot

Zix - ETP Delivery issues to subset of UK customers to Microsoft 365

Resolved Minor
December 06, 2025 - Started 2 days ago - Lasted 2 days
Official incident page

Incident Report

We are currently investigating an issue in which a subset of customer that are hosted on 365 are experiencing delays to their tenant. We will update once we have further details.

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Latest Updates ( sorted recent to last )
MONITORING about 9 hours ago - at 12/08/2025 01:07PM

We are continued to monitor as we have re-routed traffic as a workaround and continue to leave the routing in place for email delivery.

MONITORING 2 days ago - at 12/06/2025 06:32PM

Our team is working on re-routing traffic to help aid with delivery. It appears that Microsoft is deferring the messages from our delivery server and we are working on getting in contact with Microsoft as well.

INVESTIGATING 2 days ago - at 12/06/2025 01:31PM

We are currently investigating an issue in which a subset of customer that are hosted on 365 are experiencing delays to their tenant. We will update once we have further details.

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