I present the
MFMailComposeViewController
according to API, generally, the interface is normal, but some users of our app complaint the problem that the send button on the top-right is gray(it becomes disable), the user can't press the send button. I have tested in the device I had it was working.The user device info:
iPhone 6
iOS 12.4.2
I am unable to test this in the simulator and the device I had are updated to iOS 13.