Classic Outlook may hide Policy Tips for sensitive attachments

Microsoft says a code defect can stop classic Outlook from evaluating Policy Tips in some compose sessions. Policy Tips are the warnings that appear when an email body or attachment may trigger a company data policy. The issue affects Office versions 2604 through 2607, with a fix arriving in version 2608 and backports planned for August 2026.
Before this issue, a missing Policy Tip was at least a useful signal that Outlook had checked the message and found nothing to flag. People attaching customer files, HR documents, contracts, or other sensitive material could use that prompt as one small guardrail before sending. Now a quiet compose window may not mean the message is safe. For productivity workers, coordinators, and assistants who send files all day, this turns a background compliance feature into something that needs a manual pause until their Outlook build is fixed.
Analysis
If you use classic Outlook for sensitive attachments, check the Office build and do not treat a missing Policy Tip as confirmation. Use your normal file-sharing or sensitivity-label checks before sending anything that would be awkward to recall.
Source note
Pulse published by Collab365 Spaces, reviewed by Helen Jones on . Cite as "Classic Outlook may hide Policy Tips for sensitive attachments", Collab365 Spaces. 1 source referenced.