Error: The crawler threw an exception. Scan details log indicates "Failed to initialize MAPI: 80004005"
For Discover to scan .PST files on 32bit Windows, you will need to install a 32 bit version of Outlook on the corresponding version.
For Discover to scan .PST files on 64bit Windows, you must install the 64 bit version of Outlook.
The Network Discover Server scanning this target must be running a Windows operating system, and Outlook must be installed there.
If your Network Discover Server for the scan is running 32-bit Windows, then 32-bit Outlook must be installed.
If your Network Discover Server for the scan is running 64-bit Windows, then 64-bit Outlook must be installed.
Outlook must be the default email client on the Network Discover Server scanning this target.