I'm trying to add my Charter email to my Outlook.com going through the following steps:

Add an email account

Add a send-and-receive account

pop.charter.net    PORT 110   

mobile.charter.net  PORT 587 w/ SSL

All that works fine.

I changed my Default "From" address reflecting my charter email address

I can send and receive but whatever email I send does not show up in my SENT box no matter how much time I give it.

Resetting cache and temp internet files makes no difference.