Earlier today, DnA Online Testing was experiencing errors, including 504/503 and general slowness. Online Testing is now back online after reverting a scheduled maintenance update. Our Engineering teams are continuing to closely monitor the situation, and updates will be posted here as they become available. We apologize for any inconvenience this may have caused.
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Title: Some users' legitimate email messages are being marked as phish and quarantined in Exchange Online User impact: Users' legitimate email messages are being marked as phish and quarantined in Exchange Online. Current status: We're reviewing support provided information to determine our next troubleshooting steps. Scope of impact: Your organization is affected by this event, and some users attempting to send or receive Exchange Online email messages are impacted. Next update by: Thursday, February 5, 2026, at 5:30 PM UTC