Title: Testing Mail Flow using Outlook Express Author: Amit Zinman Summary: Sometimes, in order to troubleshoot mail problems you can use a handy tool installed on all Windows 2000/2003 server, Outlook Express. Outlook Express is a powerful SMTP diagnostic tool. It's availability on almost all mail servers and workstations makes it easy to play Sherlock Holmes finding clues regarding mail problems. Link: http://www.MSExchange.org/pages/article.asp?id=607