SOLVED

Block ALL EXTERNAL TEAM contacts from messaging users in your @domain.com

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New Contributor

Greetings Folks,

 

I am new to the community and apologies if this has been answered already but I couldn't find any previous conversations on this specifically.

 

My question: How can we BLOCK ALL EXTERNAL contacts from messaging our INTERNAL contacts in MS Teams (Cloud)? For example, only domain users @ABC.com could talk to other users. Any other chat requests from @XXX.com will be blocked by default. 

 

I ask because I think this could pose a security risk and various other reasons.  Thanks for reading and sharing your comments in advance.  

 

Cheers,

IT Guy

3 Replies
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Best Response confirmed by minja20 (New Contributor)
Solution

@minja20 

 

Chat can be disabled for all Guest users using the settings in the Teams Admin Center.  See

https://docs.microsoft.com/en-us/microsoftteams/manage-guests#:~:text=Guest%20access%20licensing%20l...

 

for more details.

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Beside the ability for guest users you should also configure the federation capability to meet your needs.
https://docs.microsoft.com/en-us/microsoftteams/manage-external-access