Hi, I may be mistaken but i think that that's a Norton AntiSpam header. Best regards. Bruno Guerreiro
-----Original Message----- From: Keith Hackworth [mailto:[EMAIL PROTECTED] Sent: Thursday, November 18, 2004 12:31 PM To: [email protected] Subject: X-NAS-* headers One of my customers received a blank message from Korea which spoofed an invalid email address on his domain. I was looking at the message and it contained 3 distinct "X-NAS" message headers that I don't recognize: X-NAS-Classification: 0 X-NAS-MessageID: 43604 X-NAS-Validation: {3342587F-BB8C-4C06-B6B4-9B637E4CDC44} Does anyone have any idea what would add an X-NAS-* header? I've googled it and didn't really find anything too relevant, other than people complaining about spam messages. I would like to prevent these, and it'd be great if I could just block any message containing X-NAS in the headers, but I wanted to make sure some client or isp doesn't add them automatically. Thanks, Keith
