Do you happen to know or have a rough guess when exactly your mailbox was created? From a client perspective (Outlook), you can get the date quite easily. One thing you do need to know in advance is the property tag for the PR_CREATION_TIME property name. We can get that with MFCMapi. Download MFCMapi HERE and launch it. From the menu, click ‘Session’ and choose the first menu item: ‘Logon And Display Store Table’ Choose the Outlook profile you want to load and press OK. Double click your mailbox...