Gmail: https://i.imgur.com/MQH1shA.png Fastmail: https://i.imgur.com/tczhO8g.png
Gmail Print likewise: https://i.imgur.com/SWoPXqs.png
God help anyone printing emails to shows tampering or lack of for a legal case. And does Gmail have any "Display un****ed" option?? Er, no.
And Amazon, perhaps check your emails on the world's top web client?