At 17:51 -0500 on 12/02/2015, Rich Kulawiec wrote about Re:
[ietf-smtp] [Shutup] Proposed Charter for the "SMTP Hea:
p.s. Speaking of real-world users, if I want to know somebody's
(current) IP address, one reliable technique is to get them to click
on a unique link that corresponds to a URL on a web server whose logs
I can access. Thus if I want Joe Cool to cough up his current
IP address, I can say:
"Hey, Joe, why dontcha check this out?
I can ask Joe to do this via any means available -- email, IM,
IRC, text, etc. And "Joe", for a value of "Joe" approximating
"darn near everyone", will do it.
If the message is HTML, then putting a 1x1 web-bug image in the HTML
will trigger the info UNLESS the user's MUA is set to NOT
automatically retrieve images.
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