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

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

bryanhart
Jun 17, 2020
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%20limits,Azure%20AD%20B2B%20collaboration%20licensing.

for more details.

3 Replies

bryanhart
Copper Contributor
Jun 17, 2020
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%20limits,Azure%20AD%20B2B%20collaboration%20licensing.

for more details.
- minja20
  Copper Contributor
  Jun 17, 2020
  bryanhart thanks very much for details.
  - paul-lange
    Iron Contributor
    Jun 17, 2020
    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

Forum Discussion

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

3 Replies

Resources