how to debug html rendering issue on Apple mail client

Question

We are facing few HTML/CSS issues on rendering our HTML email on Apple mail client on iPhones

Is there a way one can inspect and debug the issue?

Does Apple provide any emulator/tool to do the same?

Answer 1

What worked for us is Epiphany browser. It mimicked the restricted ability of Apple mail client to render HTML far more closely than any of the solutions below -

• google chrome, firefox, safari in responsive design mode

Someone suggested to try emulator in XCode but I couldn't get hold of Apple mail in Xcode -> Window -> Devices and Simulators