This application will
1) Export a list of SMTP email addresses for all user accounts in the Active Directory
2) Export a list of SMTP addresses for each email enabled group
3) Export a list showing the users associated with each group
4) Email all users with a list of email accounts they have and groups they are in

I wrote this application to simplify the process of outsourcing Exchange 2003 to an external hosting company. I could not find any other way of exporting all the email addresses.