Forum Discussion
External Access - lookup not working
Hi there, we are just helping a customer of us to get started with Teams. Unfortunately the Teams users are not able to contact external recipients. So if you are typing john.taylor@contoso.com t...
Try following these steps. It helped us resolve a similar issue we had at the beginning of our teams rollout.
https://docs.microsoft.com/en-us/microsoftteams/guest-access-checklist
https://docs.microsoft.com/en-us/microsoftteams/guest-access-checklist