We have IMSMO running v188.8.131.52 server and 184.108.40.206. client with Outlook 2010. It seems that Outlook is using the native Domino directory and the HTTP password for login credentials.
We'd like to force the IMSMO server / client to use AD for the credentials in outlook (we have setup DA to access our AD server). This is because we have Symantec Enterprise Vault archiving and the links in emails to retrieve the archived content require authentication and we wanted to use SAML for this however it doesn't work as we suspect the credentials passed to ADFS from the Domino EV server contain the Domino HTTP password, not the AD password therefore it fails. Users get presented with a login dialogue box to ADFS. SAML is correctly configured on the server.
So, is there a way to force the Domino server to ignore the Domino Directory and only use the directory listed in DA? I suspect not but it never hurts to ask.