External

8 Topics

New user unable to search for external contacts
Hi all! We have a weird issue with one of our users in Teams. She is unable to do external lookup of users. Everyone else in my Org is able to do so. User has Microsoft 365 E5 license The Tenant is set to Teams only and we have compaired the user to others that are working without luck. Can anyone help me out?
jonragnar
Nov 07, 2024 Place Microsoft Teams
13KViews
1like
5Comments
Teams Chat External Members - Mobile vs Desktop and External Members
Hello We're having ongoing issues connecting to external members of our Teams in chat. Our organization has about half of our team as external contractors from another org so half the team is at a second domain. We have all the members of the 2nd domain as Members. Ie I toggled them from Guests to Members in Azure directory. They all have Teams licenses in their 'home' domain. On Desktop - we can tag any of them no worries. Typing in their name after @ finds them immediately and we can tag them. In Chat however, typing in their name results in not finding anyone. I can type their full email and we can chat with them as an external person but then the chat is in their other domain, not our domain. On Mobile however, this is not an issue. Any of our members can be found in chat, and in fact we can't even add them to chat with externally. On Desktop, I can go into Manage Team, find the member (from external domain), click on them to get their info and then Chat with them and then it opens up their chat no worries. Just can't actually start the chat from the Chat window.. Becoming quite an issue as half our team is struggling to connect to the other half.
sloambbr
Aug 15, 2023 Place Microsoft Teams
760Views
0likes
0Comments
Can't connect to external meetings from the Teams Calendar, but can from Outlook
I am getting reports from many of my users across my organization that when they try and join a Teams meeting hosted by an external third party (such as a vendor, partner, or customer), that the meeting never connects if they click Join from the Teams calendar. However, if they go to the same meeting request in Outlook, they are able to join via the web link. Is there any particular reason my users cannot join a Teams meeting being hosted by an outside resource directly within Teams? All of our users have been migrated to Office 365 and Exchange Online, and Teams works pretty much flawlessly otherwise. RESOLVED - It was Mimecast causing the issue, we simply added a https://infosec.force.com/ISIcommunity/s/article/Mimecast-Whitelisting#url for teams.microsoft.com to Mimecast, so did not put a mimecast.com security URL in its place.
Solved
Brad Groux
Mar 22, 2023 Place Microsoft Teams
34KViews
0likes
3Comments
Teams guest invitation emails pose serious (information leakage) risks
Teams guest/external user invitation emails pose serious (information leakage) risks, without sharing minimal unique identification details for an inviting party. When you invite, or get invited as guest/external user, an (teams service) email invitation is sent out. Because this message contains no unique identifiable details on the inviting party, an invitee has no clue who/where an invite comes from and as such if an invite comes from a known/trusted party/person. The message header contains a full name (John Do), while the message body only contains a first name (John). The message is received from ‘Microsoft Teams noreply @ email.teams.microsoft.com ’, which of course is a trusted service…, but no clue who/which John Do is asking. Without any unique identifiable information, no one should ever select the ‘Join Teams’ link. From a security/phishing perspective this message shouldn’t even arrive in a user’s mailbox. Other (social) platforms share at least (a) unique additional detail(s) for the requestor, for better or worse on which you could base an decision to accept or deny. From an organizational perspective you might even consider which (personal) identification details to share, while (receiving) inviting a guest, and/or even what minimal information is required before allowing a message to arrive in a mailbox Once you have guest member(s) for a team, you should be able to (re)identify, each user and guest uniquely, meaning that minimal identification details should included in the ‘member’ cart, instead of John Do (External), and/or multiple John Do’s etc.. Specifically in a world where users have/bear multiple identities, as well as multiple users share first/last/full names, like John Do, you should be able to easily and at all times identify members uniquely. Scenario’s: Contoso Organization John Do John Do from the Contoso organization invites johndo @ hotmail.com and johndo @ outlook,.com to become Teams (guest) member. Each (Microsoft account) John Do receives an invitation with subject ‘You have been added as a guest to Contoso in Microsoft Teams’ and from ‘Microsoft Teams noreply @ email.teams.microsoft.com .’ In the body John (only shared details is first name) could be John working at Contoso. Ok, so this is a trusted company, but no clue what I could share with whoever is John. Of course this can be validated once accepted, but should I… Now John Do at Contoso needs to start an external chat with johdo @ live.com . Another John with a Microsoft account. While typing in the To: line ‘johndo @ live.com’, an action shows “Search johndo @ live.com externally’. You are required to select the action, with a result to select from 2 johndo @ live.com (External). One with an “Skype” icon as well as ‘johndo’ the other without anything additional. Selecting one of these John Do’s allows for sending a chat message. In the background the (Skype) John Do ends up no where … (could be something related to my config/testing). Selecting the other (blank) John Do, is received in Teams (personal) chat. Though here the inviting user is identified as Unknow User and hovering over shows ‘Unknow User is using Teams with an account managed by an organization. Some features… ‘). Also this could be related to my configuration???. Block or Accept? Guess what, you can’t accept. Optionally you can select “Preview Message”. This shows the initial chat (message), as well that it comes from John Do. Probably the 'Unknown User' from 'an organization'. Microsoft account John Do Using Teams (personal) on Windows 11, (Microsoft account) John Do is initiating a chat with johndo @ contoso.com . Contoso John will receive an email from ‘Microsoft Teams noreply @ email.teams.microsoft.com ’ with subject ‘John Do invited you to Microsoft Teams’ and in the messagebody that John (first name only) invited you with a link 'Join Teams'. The link contains probably a unique reference, , obfuscated for this scenario, and looks like https://teams.live.com/l/invite/XXXXXXXXXXXX_f6AwI?v=e1 . Again not something you can't/shouldn't accept. From a conversation point of view Even if you would except all these requests, it then becomes hard or even impossible to clearly identify/differentiate among each John Do, beacuse they all rollup as John Do in the conversations. Even withing an organization multiple John Do’s easily exist. Hovering over (members) makes them identifiable, but it would be great to optionally change their ‘display name’ or anything else to uniquely. For external John Do’s they seem all endup as John Do (External).
Solved
ITSChange
Nov 05, 2022 Place Microsoft Teams
9.1KViews
0likes
3Comments
Teams Live event with specific guests as attendees
Is it possible to allow only specific external users (guests in Azure AD) for a Teams Live event, or does a live meeting has to be organized as a public meeting, so that guests can also participate?
Solved
Thomsch
Jul 30, 2020 Place Microsoft Teams
2.9KViews
0likes
4Comments
Why cant i share files in an external chat?
I am the admin for our company, and we allow external chats without issues. Where we are having problems, is we cannot share any files/images with those external users, and there is no setting i can find to allow this? This seems like an extremely basic feature to exclude. If i had the option to quickly change between accounts/companies i would do that, but Teams doesnt allow that either...
jerrodbug
Mar 25, 2020 Place Microsoft Teams
18KViews
0likes
1Comment
No external communication with Teams when SipProxyAddress is missing?
Hi, I am a little bit confused. I have a customer where external communication (with other O365 tenants) worked without problems. Since a few weeks most of the users are not able to do this. When you want to send a message to a user of the customer Teams says "mailadress not found" (i dont know the exactly sentence in english because i just know it in german). I find out that these users do not have the attribute SipProxyAddress in Azure AD. Some users of the customers have, most of them does not have it anymore. I can add a SIP: entry in proxyaddresses on prem to get this done or enable the skype for business online license. But how is it supposed to be right now? Was there a change that every Teams users needs a Skype for Business Online license to get a SipProxyAddress to communicate externally? Kind regards Patrick
Patrick B
Aug 14, 2019 Place Microsoft Teams
5.7KViews
0likes
5Comments
Add external user to a Microsoft Team unable to do this
I have created a new Microsoft Teams using the admin center:- where a new sharepoint site has been created and its external sharing setting will be as follow:- so now i want to share the MS Teams with external users to allow them to use the sharepoint site which got created and other Teams components. now i went to the office 365 >> i tried to share the office 365 group with external user using his gmail account, but i got this error:- also i went to the MS Team >> Add Members, but i got this error:- similarly i tried adding the external user from sharepoint >> site permission >> Invite people >> "add members to group" :- but i got this error:- the only thing i can do is to share the sharepoint site itself with external users,, but i can not add external to office 365 or MS teams .. so can anyone advice on this? seems there is a sharing settings for office 365/MS Team i am missing??
john john
Jun 20, 2019 Place Microsoft Teams
74KViews
0likes
30Comments