Outlook 0x80040119 and 0x80040600: Damaged PST or OST Data File Needs Repair
Outlook 0x80040119 and 0x80040600 point at a damaged PST or OST. Copy the file first, run the Inbox Repair tool, and rebuild an offline file rather than repairing it.
0x80040115: Outlook cannot reach Exchange over MAPI over HTTP any more
0x80040115 means Outlook lost its MAPI over HTTP session to Exchange. Learn which clients are still supported and how to fix the connection.