Using SharePoint 2013 you can sync Portals data with Outlook very easily and its OOB functionality, but it is only one way synchronization. br To Synch outlook emails with SharePoint Portal we have implemented Outlook Add In feature br Using this Add In End user can pushsend emails as an attachments to Existing SharePoint items. br Using this Add In you can access all available lists from SharePoint portal and select specific items from the list, to attach emails to it.