Completing the Flagged Message
I don't like that you can't check off an email as a "completed" like the older versions allowed you to do. I do not like that it is now just a completely separate section ("Tasks"). You can only flag or unflag the email. Please bring this back!
The new outlook is nice but a big miss with not being able to mark something complete. Or create a task.
Just turning on a flag is nice but not being able to mark something done is a big miss.