For those reading https://news.ycombinator.com/item?id=15354114 OSX mail client does not help.
OS X mail has an explicit option in the "Viewing" section of its preferences saying "Load remote content in messages. Email messages may contain images or content stored on remote servers." I think this option was there since Lion or even earlier.
Privacy implications of email tracking [pdf]
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Re: Privacy implications of email tracking [pdf]
#12Re: Privacy implications of email tracking [pdf]
#13It is a bit fun how some think they can track if I open emails from them or not. I have several times got email with something like "we see you are not reading the emails you get from us, so we will remove you from our list". I did read the emails using Thunderbird, so was only their tracking that didn't work. But this is maybe what we get when most read emails in web apps from companies that want to track everything…
heaven.
Re: Privacy implications of email tracking [pdf]
#14I simply stopped reading HTML emails and read everything in plain text. Works fine for most of the emails I receive, the ones that don't are almost always marketing emails anyway. I do realise clicking tracking links still works but they are way more visible in plain text mode and it's not that hard to copy & paste the relevant part of the link. Too bad most email clients have removed plain text rendering these days.…
Same on GMail app.
Re: Privacy implications of email tracking [pdf]
#15Doesn't Google immediately download any external images/assets in an email and cache them to prevent exactly this?
Re: Privacy implications of email tracking [pdf]
#16Doesn't Google immediately download any external images/assets in an email and cache them to prevent exactly this?
Re: Privacy implications of email tracking [pdf]
#17Re: Privacy implications of email tracking [pdf]
#18I occasionally do fire up Thunderbird but only for those extremely rare cases where I actually do need to be able to read an HTML e-mail.
Re: Privacy implications of email tracking [pdf]
#19As eve-online has a shit ton of spies(and some people take this game very seriously) a large alliance was using self hosted images and logging ips that we're viewing those images. Through matching posts they were able to scout out alternate accounts and catch spies.
That's how we all heard about it at the time anyway, while technically fesable, I don't have first hand knowledge either way.
Although it did make me start to think about those emails with images and convinced me to turn them off by default ;-)
Re: Privacy implications of email tracking [pdf]
#20Doesn't Google immediately download any external images/assets in an email and cache them to prevent exactly this?
[edit] Yes, I have just confirmed this by using emailprivacytester.com