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.
Many home Wi-Fi routers are equipped with firewalls, which can provide protections such as deflecting attempts to scan your PC for vulnerabilities. Anyone who gets on your wireless LAN is behind the firewall, so if their systems are laden with viruses or other malicious code it can spread over the LAN.