Forum Discussion
Using Office 365 Groups without Exchange Online
Hi My company would like to start using Planner and SharePoint Group sites (and OneDrive group documents). But since we are using another email solution (at this time) we plan not to enable Excha...
AFAIK, Exchange Online is a requirement to have both Groups and Planner working
Perhaps consider turning on Exchange Online for your users and setting up automatic forwarders to your official email addresses?