Users' and shared mailboxes' automated signature additions may intermittently fail to show up in messages

Resolved
Resolved

Microsoft has now resolved the incident. Thanks for your patience.

Preliminary root cause: A recent code update caused Outlook on the web to attempt to load signatures from the shared mailbox context, instead of from the accessing user's account, resulting in no signature being available.

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Identified

Microsoft is looking into the issue. The information below is from their Official Service Health Page. We will keep you updated with any changes or resolutions.

Current status: We're reviewing reports from affected users to gather additional details about the message creation process so we can better understand how impact is occurring within the service and determine our next steps.

Scope of impact: This issue could potentially affect any user or shared mailbox intermittently if they're set up to automatically include a signature in new messages.

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Began at:

Affected components
  • Email