PST files and a new directory called M have been created as after running Recovery for Exchange Server. What is the purpose of these?
The recovery results are stored in several different ways depending on the Exchange Server database type being recovered. If the personal mailboxes are being recovered, Recovery for Exchange Server creates several folders, one per mail user, and stores the personal mail there in the standard .PST file. If the recovered .PST file size exceeds the 1,5Gb limit it is being split into several independent .PST files named subsequently (e.g., admin.pst, admin1.pst, admin2.pst, etc.). If the Exchange Server database with public folders is being recovered, Recovery for Exchange Server recreates in folder \M\ the whole database hierarchy folder structure. The recovered items from public folders are saved as standard .MSG files.
