Some users’ quarantine notifications aren’t being received in their configured mailbox language in Exchange Online

Title: Some users’ quarantine notifications aren’t being received in their configured mailbox language in Exchange Online

User impact: Users’ quarantine notifications aren’t being received in their configured mailbox language in Exchange Online.

More info: Affected users may incorrectly see that all quarantine notifications are being received in English when their mailbox has a different language configured.

Current status: The fix is continuing its staged deployment and at the current rate we expect it to complete by Monday, April 15, 2024.

Scope of impact: Impact is specific to some users with quarantine notifications enabled who are served through the affected infrastructure.

Start time: Thursday, March 21, 2024, at 1:00 PM UTC

Root cause: A recent service update to the code base responsible for identifying the user’s language when sending quarantine notifications introduced a code regression that’s leading to impact.

Next update by: Monday, April 15, 2024, at 7:00 PM UTC