I use Outlook 2010 to send and receive emails to/from several of the std email providers. I have a VPN that I use for connections to the internet, periodically. Why can I only send emails via yahoo through outlook only when I am connected to VPN outside the USA? I receive all the mails fine, but replying and sending emails from outlook won't go unless I am connected to the VPN. When I use standard connection the login to the SMTP server keeps bouncing up and refuses connection.