SHD / MC Checker

[serviceDegradation] DZ1162930 | Microsoft Defender XDR | Users may be unable to create new custom anti-spam policies in Microsoft Defender for Office 365



DZ1162930 | Microsoft Defender XDR | Users may be unable to create new custom anti-spam policies in Microsoft Defender for Office 365

Status serviceDegradation
Classification advisory
User Impact Users may be unable to create new custom anti-spam policies in Microsoft Defender for Office 365.
Last Updated 10/01/2025 00:25:38
Start Time 09/30/2025 21:22:19
End Time
Latest Message Title: Users may be unable to create new custom anti-spam policies in Microsoft Defender for Office 365

User impact: Users may be unable to create new custom anti-spam policies in Microsoft Defender for Office 365.

More info: Affected users may receive an error that states “An error occurred when creating the policy. Please review your settings and try again.”

Current status: We’ve identified that a recently-deployed service update contained a code issue resulting in impact. We’re preparing a fix to resolve the issue and aim to confirm a timeline for remediation as it becomes available.

Scope of impact: Users attempting to create new custom anti-spam policies in Microsoft Defender for Office 365 may be impacted.

Root cause: A recently-deployed service update contained a code issue resulting in impact.

Next update by: Wednesday, October 1, 2025, at 2:30 AM UTC