I have been getting an error when sending mail out of Outlook. This computer is connecting via RPC/HTTPS, it happens with 3 computers that are connected externally. Out of the 10 that are deployed all at different locations. The error 0x80040115 when Sending through Outlook. The error message says - "Sending and receiving reported error (0x80040115). The connection to the Microsoft Exchange Server is unavailable. Outlook must be online or connected to complete this action."
We are able to receive emails no problems, its just when sending. Also we cannot login RWW it just loads a blank page. OWA works just fine - again these symptoms are only at these three sites.
Windows 8 Pro
Used for emails and spreadsheets
Windows SBS 2011
Look forward to reading your comments!