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

[Patrik Fältström]

As MM is already doing some guessing/decision making on what are downloads and what are trackers, and give ability to do one or other other, having that selection "default" would be great.

Then, sure, I am also curious to know how MM is deciding which one is which...

   Patrik

On 30 May 2021, at 0:49, Steven M. Bellovin wrote:

> Not sure what you mean. If the IMG tag explicitly specifies the size as 1px by 1px, yes, that’s easily ignorable. But there’s no requirement to put the size in the tag.
>
> —Steve Bellovin, https://www.cs.columbia.edu/~smb
>
> Take two tablets and email me in the morning…
>
>> On May 29, 2021, at 6:48 PM, Joseph P. Hillenburg <jph at cobaltjacket.com> wrote:
>>
>> 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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