Email experiments: filtering out external images
Terracrypt BlogGardenAboutLinksEmail experiments: filtering out external imagesby Jonathan Frederickson — Mon 29 December 2025Tags: da2025 emailI had a realization the other day that, on almost every email in my inbox, my mail client has a “show external images” option. Most email I receive references externally loaded images via HTML. There are good reasons for this (not needing to send a copy of an image in every email on a newsletter) as well as nefarious reasons (the remote server can track where/when you load the image). So most mail clients I’ve used don’t load them by default for obvious privacy reasons.This got me thinking about the reverse, though: what email do I receive that does not include external images? And the answer is, mostly, email sent manually by a real human! I’m…
