Unread Marks handled in notes per user basis however in Outlook it is valid for the whole "database" level.
For example: A user that is used to work with Outlook and the way Outlook / Exchange handle unread-marks. Meaning: Unread-Marks are not per user (as in default Notes) but are valid for the whole "database".
Meaning: If User A accessing a mailbox reads a message User B who also has access to the same mailbox will also see the message as being read (without User B actually having to read the mail).
However with notes if User A reads an email with any other mail box for he has access and the same email for user B still showing as unread in that mail box.
Please change read unread mark behaviour with notes domino (from per user to Database level) as work in outlook. Thanks