RecentMessages Property

public int RecentMessages { get; }

Public ReadOnly Property RecentMessages As Integer 

public:
 property int RecentMessages {
    int get();
 }

Value

Number of messages that arrived recently.

Remarks

If multiple sessions are accessing the mailbox simultaneously, only one of them will be informed about each recently arrived messages. Also, the only reliable way to identify the recent messages is to look at the message flags or to do a Search for them.