How to check if a mail was send by a user?

Is it possible to check if a user really sends or cancels an email?
example code:

local options = { to = "john.doe@somewhere.com", subject = "My High Score", body = "I scored over 9000!!! Can you do better?", attachment = { baseDir=system.DocumentsDirectory, filename="Screenshot.png", type="image" }, } native.showPopup("mail", options) [import]uid: 106768 topic_id: 33634 reply_id: 333634[/import]

There is no way to know. There are no native APIs on iOS or Android that we can use to identify this. [import]uid: 32256 topic_id: 33634 reply_id: 133747[/import]

There is no way to know. There are no native APIs on iOS or Android that we can use to identify this. [import]uid: 32256 topic_id: 33634 reply_id: 133747[/import]