When our PA reads our emails in our absence, how can she see which ones we have read and which ones are yet to be read ?
Subject: Unread marks are local to a given user
…not a database. So your unread will be different to anyone elses unread marks.
Subject: Unread Marks
Unread marks are kept on a BY ID basis, per database. So, one user with ID A will have a totally different set of unread marks than another user with ID B. The only way around this is to access the database using the same ID.