Welcome. hMailServer is a free, open source, e-mail server for Microsoft Windows. It's used by Internet service providers, companies, governments, schools and enthusiasts in all parts of the world. It supports the common e-mail protocols (IMAP, SMTP and POP3) and can easily be integrated with many existing web mail systems.
PLEASE HELP!!!!!!!!! If you have a modem with a built in router, you can use it as a wireless (wifi) router. Wifi doesn't cost money as a service. You just need the devices that are compatible with it. Wifi is just a different way of connecting stuff to the internet.
Take a look at the list devices connected to your Wi-Fi network from your router or computer to find out. Bear in mind that many devices connect to your Wi-Fi these days. The list will contain laptops, smartphones, tablets, smart TVs, set-top boxes, game consoles, Wi-Fi printers, and more.