When usernames with capitals are used, the ACL control of public mailbox prevents correctly adding the user with a capital as a member of the mailbox.
It states "Warning Member marieke not found. If you edit the mailbox it will be removed "
When selecting users, the user Marieke is unselected, while also displaying “marieke” [ Missing object ] .
Possible solutions; Prevent capitals in usernames, or update the code of shared mailboxes to accomodate capitals in usernames.
