This is the physical location1) of the files which represent the content of the messages in the respective messageboxes of eBiss. The path /eBiss/MessageStore/ contains a subfolder with the same name for each messagebox2) and one subfolder per month (if messages occurred during this period)).
Sample: An eBiss system node named System contains four messageboxes named: From. Host, To. Host, From. Partner and To. Partner. Messages in November and December 2016.
C:\PRANKE\eBiss 3\MESSAGESTORE ├───System.From.Host │ ├───201611 │ └───201612 ├───System.To.Host │ ├───201611 │ └───201612 ├───System.From.Partner │ ├───201611 │ └───201612 └───System.To.Partner ├───201611 └───201612
Note: Under HowTo Content based search for messages is described how messages can be tracked by a content search in the messagestore.