At 9:57 AM -0500 12/6/00, O'Rourke, Tom (CTR) is rumored to have typed:
1) Why is this happening?
What they receive is a copy of the message they sent initially to subscribe; if someone else forge-subscribed them against their will, this copy will show the path of the subscription message for use in tracking down the miscrient. The fact that it looks ugly is Microsoft's fault, since Outlook defaults to sending a simple one-word subscription request as a huge HTML email message. (Look carefully at the message, and you'll see tucked in there amid all the HTML tags and other unnecessary garbage is the one word you typed - "subscribe")If I subscribe to your list, using a text/plain message, it would look considerably better but would still contain the Received: header fields necessary for making sure the request came from me and not from someone else.
2) Can it be prevented?
Why in heavens name would you _want_ to prevent a copy of the original subscription request from being included in the message? How would a user track down someone forge-subscribing them otherwise? Charlie