New answers tagged exchange
If you do not have Exchange 2013, the solution is to deactivate the Farm Feature "Farm Level Exchange Task Sync". Steps: Open Central Administration Go to System Settings -> Manage Farm Features Deactivate the Feature Farm Level Exchange Task Sync You find a more detailed description in this post!
Go to Site Setting Web Design Galleries > Web parts Files New Document> New Select: "Microsoft.SharePoint.Portal.WebControls.OWAInboxPart"
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