Even after giving some wait after "Signin" click, still unable to locate element.
This is frame and trying to find size of this frame to print values in "Email"
[attachment=1:2d47554j]Unable to locate frame1.png[/attachment:2d47554j]
But still same issue exists
[attachment=0:2d47554j]Unable to locate frame2.png[/attachment:2d47554j]
1)If you go through screenshot "Forgot password" popup itself is a frame.
2)Suppose, if there are no frame ID's, then how to switch to this field ("Email" as in above screenshot)
those are the 3 ways
http://toolsqa.com/selenium-webdriver/handling-iframes-using-selenium-webdriver/
try one after the other.