A group of Microsoft Products and technologies used for sharing and managing content, knowledge, and applications.
Hi Tim_73,
Thanks for posting in the community. We are happy to help you.
Regarding your question, before I answer it, I would like to confirm if you mean that when sharing the file/folder with multiple external users, the external users will see only their own email address in the shared email, not other users' email addresses.
- If my understanding conflicts with the situation, please point it out and let us know.
- If so, I can't reproduce the same situation. To my knowledge, there are no built-in settings that can cause this kind of situation. To troubleshoot it further, I would like to suggest you contact your admin/IT department and ask them to raise a support ticket via Microsoft 365 Admin Center> Support> New service request. That support team there will have the correct channel and resources to help you investigate more and find what exactly the reason has caused this situation.
Appreciate your understanding and patience.
Sincerely,
George | Microsoft Community Moderator