external access
11 TopicsFree Teams Licenses Now Blocked for Federated Communications
Microsoft announced blocked Teams federated chat for trial tenants in June 2024. That block is now well and truly enforced. If you use an account in a trial tenant (and many flavors of these accounts exist), then you won’t be able to set up a federated chat with someone in another Microsoft 365 tenant. It’s an example of how Microsoft restricts service functionality to stop misuse. https://office365itpros.com/2024/10/09/blocked-teams-federated-chat/251Views0likes0CommentsMicrosoft Teams : Unable to add the domains in external access
Hello All Hope eveyone is doing great. am looking for the help from MS teams experts for one of my issues facing in Teams admin portal My tenant is not open to extrenal domains, and its restricted to only allowed external domains for chat and calling funtionality. All of sudden, am unbale to add any of the domains in externals access via teams admin portal (GUI) its not allowing me to click DONE to save the changes further. please find the screenshot however i can able to add it via powershell Ramki: 02/29/2024 14:42:15>$Domain = "orange.in" Ramki: 02/29/2024 14:43:27>Set-CsTenantFederationConfiguration -AllowedDomainsAsAList @{Add=$Domain} Ramki: 02/29/2024 14:43:30>$Domain = "orange.com" Ramki: 02/29/2024 14:44:01>Set-CsTenantFederationConfiguration -AllowedDomainsAsAList @{Add=$Domain} i have tried differnt browser and different system, No luck.1.2KViews0likes4CommentsSetting External access options via powershell
Hi. I'm trying to set External access for Teams, but via powershell. Specifically the "Users can communicate with Skype users" option. I can successfully set the "Users can communicate with other Skype for Business and Teams users", but I can't find a solution for the other option ("Users can communicate with Skype users"). I have read numbers of blog postings, tutorials for the mentioned subject but it just doesn't work, the option won't switch. Most mentioned powershell command for doing it, is the following: Set-CsExternalAccessPolicy -EnableOutsideAccess $False Set-CsExternalAccessPolicy -EnableFederationAccess $False Set-CsExternalAccessPolicy -EnablePublicCloudAccess $False Set-CsExternalAccessPolicy -EnablePublicCloudAudioVideoAccess $False And while the script changes the targeted parameters successfully, the switch in the GUI still remains in "ON" position. I Have set the switch to the "OFF" position by hand, but underlying parameters quoted in code block above, haven't changed (their values retrieved with Get-CsExternalAccessPolicy powershell command. So, from that, it seems that those commands aren't for that option after all.. Any help is appreciated. Br19KViews0likes11CommentsBlocking Access to Teams Meeting Chat in External Tenants
A setting in the Teams meeting policy controls whether users can access the meeting chat in meetings hosted by non-trusted external tenants. By default, the setting is On, meaning that users can participate in chat for any meeting they join in any tenant. If you have concerns about this aspect of meetings, turn the setting Off and define trusted tenants. https://office365itpros.com/2023/10/23/block-meeting-chat-untrusted/1.1KViews0likes0CommentsSecurity Researchers Demonstrate Exploit Against Teams External Access
Security researchers JumpSec demonstrated a weakness in Teams External Access by showing how to send malware to users via a federated chat. The exploit depends on another weakness in that attackers can interfere with the set of policy controls transmitted by the Teams server to clients. It’s yet another reason why Microsoft 365 tenants should restrict external access to the set of domains they really want to chat with. https://office365itpros.com/2023/06/26/teams-external-access-exploit/4.6KViews0likes0CommentsExternal access - users in external organizations accessing team after a meeting.
HI, I was tasked to create a Team that included some of our staff and some External Users from another Organization. All fine there. now, turns out we had 'Block All External Domains' turned on in the settings. so was in the process of changing that to 'Allow Only Specific Domains' as the external staff were unable to connect to the team (or login to it) In the meantime one of the external staff had a meeting with one of the other internal staff and it was scheduled and ran from teams client. but during the meeting the external noticed that they could now connect to the team ''Group' and view the file area that was setup initially. Even though i have not changed the global setting yet.! Somehow this doesn't sound like its intended behavior. or have i missed something that if they have a 'meeting' it bypasses the 'Block all domains' setting. Any thoughts on this? Note: the one external user that was in the meeting can access, while another that wasn't in it, can't. I'll see if that external user can replicate using the meeting, but that wont be till later in the week. Regards Will1KViews0likes1CommentKommunikation mit externen Teams-Nutzern
Wir haben ein Problem bei der Kommunikation mit externen Teams-Nutzern. Der externe Zugriff ist im Teams Admin Center aktiviert und die Domänen der gewünschten Kommunkationspartner stehen auf zugelassen. Wenn ich nun nach einem externem User über die E-Mail-Adresse suche finde ich ihn und er wird als extern angezeigt. Unter seinem Namen ist ein kleines Skype-Symbol. Wenn ich jetzt versuche ihm eine Nachricht zu schreiben schlägt dies Fehl und es kommt die Meldung "Dieser Benutzer ist nicht verfügbar oder offline. Es wurde stattdessen eine E-Mail gesendet". Der Nutzer hat mir dann zu einem späteren Zeitpunkt eine Nachricht gesendet die ankam. Auf diese konnte ich erfolgreich antworten. Heute habe ich nochmal eine Nachricht gesendet mit der gleichen Fehlermeldung. Die Einstellungen im Teams Admin Center der Gegenseite haben wir überprüft. Sie sind identisch mit unseren. Der andere User kann mich auch über Teams anrufen, ich ihn aber nicht. Sonstige Teams-Richtlinien sind bei uns weitestgehend auf Standart. Gibt es da noch andere Stellen an denen ich schauen muss?Solved1.8KViews1like2CommentsExternal presenter can't join live-event after it started?
Is this a bug or a known problem? A collegue of mine was invited to give a presentation on a project in a different Tenant (Let's call it Organisation B). The live-event was hosted by Organisation B, the organisation had multiple presenters each giving a presenation every 30 minutes. My collegue was second in line to give a presentation, when she wanted to join the live-event 5-10minutes before it was her turn. The connection kept failing, giving an error after 1-2minutes saying she couldn't make connection. Since we also host live-events regularly, I wanted to make sure what the cause of this problem would be. If it isn't possible (as a presenter) to join after the live-event started, why isn't it? Thanks in advance for any replies! *Since this wasn't on my computer and the live-event is already over, I can't share any screenshots.*Solved11KViews1like18CommentsExternal Access - What can external users do?
Dear community, I just got external access working with both test tenants that my organization has. However, I want to clarify some things about what external access opens up for other users from other organizations (in case of "open federation"). My questions are the following: 1. In case of "Open Federation / no blocked domains": Can anyone who has access to my emailaddress, has Teams and external access with "open federation" as well, just send me a chat message, without any form of me having to accept that incoming chat message? 2. In case of "Open Federation / no blocked domains": Can anyone who has access to my emailaddress, has Teams and external access with "open federation" as well, just give me an ad hoc call via their Teams chat, without any form of me having to accept that incoming call? I am asking this just to make sure I get this straight. Because if there is no sort of security in the sense of blocking incoming external calls or messages when using external access in combination with "Open federation", then potentially you open up a new channel for spamming and phishing right? Thank you so much for your help, SylvesterSolved4.6KViews1like5CommentsNot able to find external users from my organizational teams account
Hi, I'm not able to find external users (personal account) from my organizational teams account. I typed the mail address on the To box in Create a chat window. And clicked on Search for the mail externally. Still couldn't find the account. I have added screenshots of both the accounts. Am I doing something wrong to find the external user.Solved1.8KViews1like1Comment