Disabling 3rd party apps and Exchange query?

[Aroh Shukla]

Hi all, 

I have a query from a customer about who is interested in implementing Microsoft Teams. 

• Exchange: 
  
  We should them how to use it. They have a concern. When we create a new Team using Microsoft Teams app, Team (via Office 365 Groups) automatically a shared mailbox (Exchange), a modern SharePoint Site, OneDrive, etc.
  
  The customer asked that if the new Team is created, do they have to get an additional license for Exchange? I think it is already in their E3 subscription. 
  
  
• Disabling 3rd party Teams apps: 
  
  Can we use this link ? 
  https://docs.microsoft.com/en-us/microsoftteams/teams-app-permission-policies 
  
  

Please advise? .

[#2 · Accepted solution]

You don't get a shared mailbox, you get an Office 365 Group mailbox, which is free (no license required). And yes you can use the method outlined in the documentation to block/

[#3]

thanks a ton on for a quick reply