Hi Melody, I know nothing about Verison I'm sorry.
However, I wondered if there is a "Tools" then "Options" setting in Verison like there is in some other mail programmes.

I remember that I could do that in Outlook Express ages ago when I used that. It would bring up a window where one could change the Mail Sending Format. That was in Send.

I wonder if you have that option in Verison.

Also might want to check your Internet Options in Control Panel.
Network and Internet Connections.
Internet Options then programs.
"You can specify which program Windows automatically uses for each internet service".

good luck with it.