IPV6 is going to change the SPAM Landscape
The majority of SPAM detection solutions in the market today rely in some part on RBL lists for their primary detection of Spam. Think of this as a central database of known spammers. Your email content filtering vendor subscribes(or in some cases doesn’t) to these database services and in near real time looks up and if required hangs up on email from known spammers. Think of this as caller ID for email.
In an IPV4 world the number of potential IP addresses where spam could be originating from has meant that RBL services have been extremely effective at providing high quality blocking with low false positives.
The challenge we all face with the release of IPV6 “the new Internet” is that we will end up with some potential 340 trillion, trillon, trillion IP addresses from which spam could be coming from - I saw one publication give the following analogy: Its like allocating an IP address for every grain of sand in the world.
So going forward in an IPV6 world whitelisting, domain authentication, and reputation techniques will have to be used to combat SPAM.
Interesting times ahead.
The following article is worth a read
Spamhaus has already released their Whitelisting service Information can be found here
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