I got a call from a coworker who was having trouble sending mail out through our server from her house. After speaking with the T/S at Earthlink (her DSL provider), she was told to change her Outlook SMTP port to 587, because Earthlink is blocking port 25. Of course it didn't work until I set up a port redirection, but apparently saveral ISPs are doing this. I assume it's to stop spam. Anyone heard of this?