Navarr's Journal: /. is Phising now?

I was checking my email this morning, using Microsoft Outlook 2007 and came across my normal [Slashdot] Stories subscription; when I noticed that Microsoft Outlook had applied a red banner to the top of it; saying "This might be a phising message and is potentially unsafe. Links and other functionality have been disabled". Is this just a software Malfunction, is Microsoft starting to hate Slashdot, or is there another reason deep within the headers of the email message?