[MlMt] Conditional (per account/per sender/recipient) behavior - PGP and images

[Joseph P. Hillenburg]

What about for email items that already have a 1x1 IMG tag placeholder, or do advertisers never do that?

-JPH

> On May 29, 2021, at 17:32, Steven M. Bellovin <smb at cs.columbia.edu> wrote:
> 
> 
> On 29 May 2021, at 17:30, Randy Bush wrote:
> 
> 3. Is it possible to disable image tracking for 1x1 image by default, 
> even if I choose to load the images?
> 
> yes, please
> 
> I don't see how that's possible. It's the attempt to do the download 
> that leads to tracking: a web server somewhere sees a request for 
> the tracking URL; whether or not anything is shown is irrelevant. 
> And until you download it, you don't know that it's 1x1. I suppose 
> someone could set up a server that collected the hostnames or 
> URLs that served up these things, but uploading to the site is also 
> tracking, though presumably we'd trust it more.
> 
> —Steve Bellovin, https://www.cs.columbia.edu/~smb
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