[unisog] Looking for sites that are redirecting SMTP requests

Dave Hale ddh at mtu.edu
Tue May 13 17:01:28 GMT 2003

  We have just started (this morning) blocking outbound connections to 
port 25 in an effort to keep mis-configured systems from turning into spam 
relays.  To be able to make an outbound connection to port 25 you need to 
be a registered mail relay (just a handful).  We do still allow inbound 
connections to port 25 so that our students on resnet can run their own 
mail servers.

David Hale <ddh at mtu.edu>               IT-DCS Senior Security Specialist
Ph: 906.487.1727                       Michigan Technological University

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