Forum Discussion
Teams shared or private channels email address removed for privacy reasons automatically generated emails
In Microsoft Teams, if one creates a Shared or Private channel and then adds a Meeting in it, the invites are sent from a new account, that looks like a email address removed for privacy reasons (e.g. email address removed for privacy reasons)
These senders are not mail users and cannot be listed in any way (neither on the UI or programmatically). This has been the official Microsoft Premier Support reply.
So, for any organization that wishes to have a full list of valid email addresses, these are all invisible to Powershell or Graph.
For any organization that has a 3rd party mail protection system, these unknown internal addresses are blocked, so we cannot use them.
Yes, this functionality is documented nowhere at all. Even Support had a tough time understanding the issue.
Emails are of this style: 0adf908-098d0-0930902d AT domain.com (our domain).
It is important that we have visibility of these addresses as they could potentially be maliciously used.
I really wonder how a new feature, as important as this, is nowhere to be documented.
I checked and even using the Get Email Address of the channel functionality doesn't get the same guid.
I think this will end up in the Feedback site
https://feedbackportal.microsoft.com/feedback/forum/ad198462-1c1c-ec11-b6e7-0022481f8472
Added it:
https://feedbackportal.microsoft.com/feedback/idea/ffb95f89-15ea-ef11-a4dd-7c1e52c1c6b2
Hello,
I guess you meant Shared channels as Private ones don't support scheduling meetings yet.
The forum removed the email address examples you included, but I got the point.
It seems this scenario is not covered by https://learn.microsoft.com/en-us/microsoft-365/admin/email/select-domain-to-use-for-email-from-microsoft-365-products?view=o365-worldwide
