When is the backspace issue for Outlook Mail for Windows 10 Phone going to be addressed?

My Lumia 930 (Win10) can't use backspace when writing emails in Outlook mail. Also, there is a problem with replying to emails in general: the "send" button is often grayed out, even though everything is looking as it should, addresses filled out etc.
The backspace issue is getting really old and frankly I'm getting sick of these things.

Simon

from Windows Central Forums http://ift.tt/1Pf1T8M
via IFTTT