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 unable to access their Exchange Online mailboxes and get POP3 authentication errors User impact: Users may be unable to access their Exchange Online mailboxes and get POP3 authentication errors. More info: Affected users are returned an error message stating, "Authentication failure: unknown user name or bad password" when attempting to access their Exchange Online mailboxes. Current status: We've expanded communications to encompass all users potentially affected by this issue and we've adjusted the "Title", "User impact" and "Scope of impact" sections of our communications to reflect this change. We're analyzing recent changes made to our authentication code flows to isolate potential discrepancies that may point to the underlying root cause and to determine our next troubleshooting steps. Scope of impact: Some users may be unable to access their Exchange Online mailboxes and get POP3 authentication errors and are returned an error message stating, Authentication failure: unknown user name or bad password.” This section may be updated as the investigation progresses. Next update by: Thursday, January 29, 2026, at 1:00 AM UTC
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Some users may be unable to access their Exchange Online mailboxes and get POP3 authentication errors
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