@supernova @hal9000 ok, this makes a lot of sense then (I imagined some omnipotent trackers embedded in emails...)
@supernova @hal9000 so I actually tested it and in emails sent to non-Criptext accounts they embed an IMG tracker - so still creepy I'm afraid :)
@kravietz @hal9000 That is only within Criptext to Criptext emails, it's the same as the Signal read receipts feature.