I need to add that the "Tab-Enter" shortcut doesn't always work with
original emails either. Even with original emails (not those which are
Replies) it Tab-Enter will create a Draft instead of sending. At other
times it will open a strange web site, one which apparently sells dog
beds (very odd!).
If it worked, Tab-Enter would be one of the handiest keyboard
shortcuts. Is there a way to make it work, or is there another
shortcut which actually does work all the time (other than going back
to the mouse and clicking the "Send" button?