Outlook Express corrupts the inbox.dbx if it reaches 2GB. Your inbox will appear empty. Rename the inbox.dbx to get new emails coming in.
To salvage emails from the corrupt file you can buy DBxpress, or download the older DBxtract app from the same author from: http://www.pcworld.com/downloads/file/fid,23383-order,1-c,email/description.html
- however, the old tool will take *~5 days* to recover 2GB of email off a hard disk. I managed to decrease it to a few hours by loading the entire inbox.dbx into a RAMdisk.
Here is a great RAMdisk program suitable for Windows 2000/XP/Vista/7 (32 & 64-bit):
http://members.fortunecity.com/ramdisk/Download/download_and_001.htm
Obviously you need a machine with 3GB or more RAM.
