[j.p.s]

Originally Posted by Trigun

i think i didn't understand anything.... u can use KF8 with mobi too? i'm converting an html file with calibre command line:

but if i use azw3 i can't send to kindle with email if i try to use the cable and send azw3 to kindle i get a different result but still no smile (photos)

azw3 https://www.dropbox.com/s/lu0rfqwuk3nkxci/azw3.jpg?dl=0
mobi https://www.dropbox.com/s/mc0vfko2j3jbazj/mobi.jpg?dl=0
original from kindle viewer https://www.dropbox.com/s/yywleov84v...ginal.PNG?dl=0

You should have said you are using calibre and should give an example command line.

You can email html to kindle

Or convert to epub instead.
rename file.epub to file.txt or file.zip and email to kindle.

See the following:
https://wiki.mobileread.com/wiki/Kin...ile_Conversion
https://the-digital-reader.com/2017/...ut-conversion/
https://the-digital-reader.com/2016/...ndle-by-email/

There are a number of threads about this, but I can't find them at the moment.

You probably need an epub with an embedded font.