#FAQ: Limiting External Access for Microsoft Teams

Microsoft Teams may be a bit spooky, but it can be very cool as well.

The introduction of Microsoft Teams as a replacement for Skype for Business means that collaboration and sharing data between people across departments and organizations will be easier than ever.

However, sometimes you don’t want “too much collaboration and sharing”. Right???

Just as with other areas of Office 365, it is especially important to consider the security risks that open up with these great new changes. Maybe you don’t want your users to collaborate with anyone outside of your organization, or maybe you only want your users to collaborate with 2 or 3 specific partners.

Can you control and manage these features with Teams?

Yes, you can!

To get to the Microsoft Teams and Skype for Business Admin Center, log into your Office 365 tenant with admin permissions, click on the Admin button | Admin Centers | Teams & Skype (Note: this may change in the future to simply Teams).
1. On the Teams Dashboard, click on Org-wide settings. Then click on “External Access”.
2. Switch from “on” to “off. This will prevent users from using Teams to communicate with external folks outside of your organization.
3. Inversely, select “On” if collaboration is required between users in your organization and external partners or customers.
4. If you’d like your users to only be able to communicate with external parties from specific domains, click the “add domain” option, and then proceed to enter in the domain you want to allow your users permission to communicate with.
5. Click Save.
6. Please note: Administrators for allowed domains will also need to complete the same steps in their Microsoft Teams configuration in order to allow for collaboration across the Office 365 tenants. In other words, their IT Support Admin will need to enter your domain into their list of allowed domains, just as illustrated in the steps above.

And there you have it!

As Microsoft continues to phase out Skype in favor of Teams, stay tuned for additional tips and tricks on how to secure your Teams!