If you use Microsoft Outlook and were to scan your computer for files holding individual e-mail messages you would not find them. The reason for this is that Microsoft Outlook emails are written to a special database to the file known as a PST. This file which usually has a set size limit of 2 GB holds and controls all of your Outlook emails, scheduling, and customizations. When the PST file becomes overfilled or damaged due to a computer virus or improper scanning it very often results in a partial or complete shutdown of the Microsoft Outlook inbox.
To solve this problem you need a program designed to recover Outlook PST information. In contrast Microsoft Outlook Express stores all files separately using the DBX format. These can actually be searched for on your PC and located. But finding them does not necessarily allow you access to open a corrupted DBX file based email message. For that task you must use a program bill to recover Outlook DBX file information either by reconstructing the file access codes or at the very minimum allow you to open the DBX file and copy from it the pertinent data.