Using classic Outlook for Windows in business environments
The recommended troubleshooting steps for this scenario have already been outlined in the AI‑generated response above.
Please follow those steps and check whether the Teams Meeting Add‑in remains active in Classic Outlook after completing them.
If the issue persists after all steps are applied, it will likely require review by your organization’s IT administrator, as enterprise policies or deployment settings may be preventing the add‑in from loading correctly.
Please let me know how you get on, as your feedback is valuable to the community.
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