Thanks for the reply. That's the only thing I could find as well. One of our other offices seems to be using this port for Outlook authentication. The only thing I can think of is that at some point a registry entry was made to force traffic over this port.
Thanks much,
--
Colin M. McGroarty, MCSE, MCP+I, NT-CIP
2004 Microsoft MVP, Windows Server - General www.McGroarty.org
I don't think so but I'm not sure. A quick stroll across the web did turn up
this using port 1550:
Image Storage license manager 3M Company