You can control Skype for Business Online access to Lyncusers in other organizations.

Configure federation with external domains

  1. Click Admin > Lync to go to Lync admin center.

  2. Click organization > external communications.

  3. Under external access, choose an option that controls your access to other organizations using Lync:

    • Off completely

    • On except for blocked domains

    • On only for allowed domains

  4. Under blocked or allowed domains, you can Add Add, Edit Edit, Remove Delete, or Search alternate text the list of domains as appropriate.

Keep in mind:

  • The organization you’re federating with must also allow federation with your domain.

  • When you’re communicating with someone in a federated domain, you can only use Lync features (for example, video conversations or desktop sharing) that are turned on in both organizations.

Need more help?

Expand your skills
Explore Training
Get new features first
Join Microsoft Insiders

Was this information helpful?

What affected your experience?

Any additional feedback? (Optional)

Thank you for your feedback!