ionos.co.uk incident

Authentication Error in Email Clients

Minor Ongoing View vendor source →

ionos.co.uk is currently experiencing a minor incident affecting Microsoft Exchange, which began 4h ago. The vendor's full update timeline is below.

Started
Jun 10, 2026, 10:59 AM UTC
Resolved
Ongoing
Duration
● 3h 36m
Detected by Pingoru
Jun 10, 2026, 10:59 AM UTC

Affected components

Microsoft Exchange

Update timeline

  1. identified Jun 10, 2026, 10:59 AM UTC

    Due to technical disruption in our email systems, some customers may encounter authentication error in Microsoft Exchange Outlook. In the meantime, we recommend customers to use the OWA on https://exchange2019.ionos.co.uk/owa.