> Blacklists should not include whole IP blocks. I am not responsible for what my IP neighbor is doing with their server.
This is obviously laughably naive and creates infinite sources of spam.
Before doing a proposal on a core Internet technology you should be required to be on the other side for a while. Do anti-spam at a large retail e-mail service provider for a year and then you can understand the problem space.
You might not be responsible for what your neighbor is doing with their server, but the ESP is responsible for filtering it. The idea that they need to treat each and every comcast IP with equal weight is nuts. IP reputation is the single most valuable tool in the industry; the largest statistical predictor of whether or not an email is abusive.
This is obviously laughably naive and creates infinite sources of spam.
Before doing a proposal on a core Internet technology you should be required to be on the other side for a while. Do anti-spam at a large retail e-mail service provider for a year and then you can understand the problem space.
You might not be responsible for what your neighbor is doing with their server, but the ESP is responsible for filtering it. The idea that they need to treat each and every comcast IP with equal weight is nuts. IP reputation is the single most valuable tool in the industry; the largest statistical predictor of whether or not an email is abusive.