Your mailbox is a private box holding all of your mail inside. You don't want someone reading private information about your emails. You can use public WiFi connections while traveling within or outside your country to access your windstream email and even browse the internet. When connecting to a public hotspot you do not use a secure link to the internet. You do not want this to happen! VPN is the answer to that question. With VPN you set up a private internet connection. This will ensure you're shielded from everything you do. Stable account.