Having done the elaborate Setup of DOLs, created the N_IMAPDLL.inf and N_IMAPDLL.exe, configured the mail6ex.ntf and created users with it - I can setup a user and send/receive mail via Outlook to Notes.
However I cannot do Out of Office.
Apparently, the DOLs install is suppose to update the Tools-Options Menu in Outlook and show a Domino Preferences Tab. It is not there.
Best Regards.