No I have just been through my own app which is connected to *.gmail *.yahoo *.sky and do not see an option in any of them but know what you mean as I can select recipt from my PC.
Jonathan, did you ever figure out a way to do this? I've set Outlook on my Windows comptuter to *not* send read recepits, but my Samsung S8 does send 'em, and I don't want it to.
Are you saying that you receive proof that an email you sent gets received and read by the recipient on your S8? I have been trying to find that feature without luck. If you figure how to turn it on and off, please let me know. Thanks