If I receive an inline .PNG image using the latest eM Client mobile app V10.0.3530 and iOS18.0.1, it won’t display the image even with setting privacy to download all pictures.
However eM Client V10.0.3530 mobile app on Android does display the .PNG images.
The iOS app will however display inline .JPG images ok, just not the . PNG inline images.
Testing the Google Gmail app & Edison mail iOS app, they both do display the .PNG image ok.