Outlook

Several problems:

Outlook uploads two copies of all emails - this does not happen on IMail or any other device so it must be something to do with Outlook itself

There is no Outbox. It appears briefly when I boot up the system them disappears. There is an email in there which will not send as the attachments appear to be too large. However, when i mange to get into it  - before it disappears - it will not allow me to delete or alter the message that is in the Inbox

Any suggestions on either problem?