Initial Group provision had been completed. Subsequently run Group Provision to keep groups in synch with corresponding Notes Groups, getting the following error in the log file and the group membership did not get updated:
Delete the initial group created in the AD, and re-run the Group Provision task to create the new group with correct SMTP Address. Subsequent run MNE Group Provision will match with the correct SMTP Address for the group.
Manually assign Email Address in the Exchange with the same value specify in the Notes SMTP Address for the Group. Rerun the Group Provision again for MNE to match.