Accidentally closing new e-mail window

Steps to reproduce:
-Create a new e-mail.
-Click in the message body text area.
-Open any other window.
-Press Alt+Escape. (This is a standard Windows shortcut combination.)

-The new e-mail window is closed.
-The keyboard shortcut that was sent to the above window should not affect the em Client window.

Thank you for reporting - we have already fixed it.