Hi @Tom Mitchell
There is currently no feature in Teams to send reminder emails to attendees.
However, attendees can set it up in Outlook (they need to set it up manually), select a meeting, and choose how long before the meeting to remind them.
You can also try to automate this process using Power Automate. When a meeting is about to start, Power Automate automatically sends emails to attendees. For specific steps, please refer to this document.
If you want to use this feature in Teams, you can send a feedback directly to Microsoft Feedback to add it in future updates.
Many features of our current products are designed and upgraded based on customers’ feedback. With requirements like this increase, the problem may well be released in the future.
Thanks for your understanding and support.
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