Often, you get a lot of returned mail after sending out your newsletters to a mailing list. To clean the list by removing all the faulty email,
1. Store all those email in a new folder in your Outlook Express
2. Install Extract DBX, extract the dbx file to individual .eml file.
3. Install Email Bounce Handler, drag all those .eml files to the program.
4. Export faulty email address to a text file.
5. Process it at Group Mail, using Purge from group function.
Email me pin@1.com.my if you need any help
Good luck