This page aims to provide an overview of Internal IT main managed apps. To open tickets, please raise a ticket via myCriteo (link at the bottom of the page). Get automatic Slack update on apps status by joining the Slack channel #iitappstatus (link at the bottom of the page)
Title: Some users may be intermittently unable to access their Exchange Online mailboxes in some connection methods User impact: Users may be intermittently unable to access their Exchange Online mailboxes in some connection methods. More info: This issue may intermittently impact some users who are attempting to access the Exchange Online service through the Outlook mobile apps or the new Outlook for Mac desktop client. Current status: Our telemetry indicates that disabling the impacting updates has significantly reduced the number of errors. We're continuing to monitor the environment to validate no additional mitigation actions are needed. Scope of impact: Impact may occur for some users intermittently and users may be unable to access their Exchange Online mailboxes with the Outlook mobile apps or the new Outlook for Mac desktop client. This section may be updated as our investigation progresses. Start time: Thursday, March 12, 2026, at 12:00 AM UTC Root cause: A recent update intended to enable new Virtual Account functionality introduced a routing conflict that’s preventing the Outlook mobile apps from syncing to the Exchange service as expected, leading to impact. Next update by: Wednesday, April 1, 2026, at 6:00 PM UTC
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Some users may be intermittently unable to access their Exchange Online mailboxes in some connection methods
Outlook
