TAINT -- Justin Mason played around with Gmail and makes a very interesting observation: "GMail does not create HTML mail -- all mail composed through their composer is sent as text/plain only. This is very interesting, because it suits me just fine. HTML mail causes so many more problems than it solves, especially when full-featured web browser components are used to display it, IMO. I get to see the security exploits this enables, every day in my anti-spam work. But it's also very significant that nobody else has commented on it -- nobody misses it!
Justin Mason -- "More thoughts on Gmail"
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