The University provides a method to relay outgoing email using a registered static IP address. This service (smtp.umn.edu) is used in the case where a server, device or application needs to send email but is unable to authenticate. Registration for this service is available at SMTP Relay Registration.
This service is used by:
Copy machines that need to send email but are unable to authenticate
Servers or applications that need to send email but are unable to authenticate
Any user unable to authenticate that is sending from a static IP address