The Cybermagic Of Whitelists
Before we start getting deep into the meat of this article it's important to explain some standard terminology to make sure the rest of this article makes sense.*An IP address is a number which identifies your location on the Internet.*A blacklist is a list of IP addresses which your antispam software uses to block incoming spam.*A whitelist is the exact opposite of a blacklist. A whitelist is a predefined list of IP addresses that are allowed to send email to and receive email from each other. Blacklists exclude known and suspected spammers. Whitelists can be used to exclude everyone except known IP address...