What is DBX files?
DBX files (files with *.dbx extension) are the files where Outlook Express stores email messages. They can be found in so-called Outlook Express Store Folder. When you open Store Folder in Windows Explorer, you will see a set of DBX files. Every file contains messages from the appropriate message folder in Outlook Express. For example, Inbox.dbx contains emails from Inbox folder and so on. Folders.dbx is an index of all Outlook Express message folders. It contains a structure of all news groups, mail folders and some synchronization data. Common problems with DBX files Maybe one of the most widespread problem occurs when moving Outlook Express messages to another identity, Outlook Express or another computer. When you copy DBX files from one Store Folder to another it is obligatory to copy Folders.dbx too. Otherwise, you won’t be able to open message folders in Outlook Express. A common problem is with an extremely large size of Inbox.dbx, Sent Items.dbx and Deleted Items.dbx. This may
