This is an importable outlook delay rule that all outgoing emails will sit in the Outbox for 1 minute before delivery will be attempted.
Outlook 2003:
Tools -> "Rules and Alerts"
Click "Options"
Click "Import Rules..."
Browse to where the .rwz file has been saved...done
If someone could confirm if this works the same for Outlook 2007, I'd appreciate it.
[Update] Thanks all for confirming this works in 2000 and 2007.