New Post: mfcmapi using Exchange 2016?

Hi George,

Is MAPI over HTTP enabled in the Exchange Organisation? In that case it is currently not possible to open other user's mailboxes, This seems to be a known issue for the Outlook 2013 MAPI. Try Outlook 2016 MAPI, this worked for me (without using MFC MAPI, just in code). With MFC MAPI I currently get the error message

Error:
Code: MAPI_E_NOT_FOUND == 0x8004010F
Function HrGetOneProp(pGlobalProfSect, PR_PROFILE_HOME_SERVER, &lpServerName)
File MAPIStoreFunctions.cpp
Line 340

You could also disable MAPI over HTTP and use RPC over HTTP again for the MAPI implementation, see e.g https://technet.microsoft.com/en-us/library/dn635177(v=exchg.150).aspx.

The outlook connections status (RPC/HTTP, HTTP, RPC/TCP) can also be shown, see e.g. here
https://technet.microsoft.com/en-us/library/bb123650(v=exchg.65).aspx

-- Niels