Kind of ironic as I email my users about switching to exchange due to problems with smartermail and here I can't even type the message in web mail. I have BCC showing and as I get to the bottom there is no scrollbar. I used arrow down to get to where I needed and then the button row at the top disappeared so I couldn't even send the message. I resized the window and the buttons reappeared. 

I am absolutely thrilled with Exchange and not sure why I didn't make this change long ago. No EAS nonsense from ST's terrible implementation, what a dream it is to use Exchange!

The attached image is not cropped, this is the entire popup window in trying to send this message.