If you set the AllowExchangeConnectivity attribute for the mobility policy to false in Microsoft Skype for Business Server 2015, Skype for Business on Mac clients can't retrieve meeting information through the Exchange Web Services (EWS) connection to the Exchange server.
Notice: This website is an unofficial Microsoft Knowledge Base (hereinafter KB) archive and is intended to provide a reliable access to deleted content from Microsoft KB. All KB articles are owned by Microsoft Corporation. Read full disclaimer for more details.