I am working on incorporating a Calendar web part into my Sharepoint Online (O365) Team Site.
However, people's mailboxes aren't in Exchange Online, and I'm not sure exactly how the Calendar web part is supposed to be useful.
If I have multiple Calendars across various Team Sites, how would a use be able to see those from their primary dashboard of Calendar viewing, which is Outlook 2013?
If not, then is there at least a way to make new events put on the calendar automatically send invites to the users so they can accept and keep a copy on their Outlook? And receive cancellations upon those events being deleted as well?