MNE - Unable to open the MAP profiles default mailbox

Hallo Community,

we want to do some migrations - we have installed the latest version of the MNE. Also installed an new version of Outlook on the migration machine.

Outlook is working fine and the Profile 'Outlook' is able to access to the mailbox.

Starting NME it is not able to communicate with the Exchange - Unable to open the MAP profiles default mailbox - MAPI error 8004011D is the error message.

Can someone assist me to solve this issue?

Thanks
Philipp