著者: Chris Edwards 日付: To: Mike Lima CC: exim-users 題目: Re: [exim] abuse report
On Mon, 8 Nov 2004, Mike Lima wrote:
| I give you an example. Lists like Sorbs.net, block IPs of dial up
| accounts, dynamic IPs and entire blocks of IPs, the first time a spam
| comes from one IP within the block. Imagine blocking from ip 1.1.1.1 to
| 1.1.1.255, just because 112 sent spam. Doing that you are causing damage
| to people that have nothing to do with the matter. They are blocking
| nameservers, as you know, machines controlling hundreds, thousands of
| domains. My server is now on a nameserver that is blocked. They are
| blocking large free email accounts, as Yahoo, Hotmail, etc. They feel
| like prepotent and arrogant gods with final decision to block countries,
| continents, etc, at the first spam they receive from those places. | | I agree that you can create a block list, but not by IP. As you know,
| spammers use dynamic IPs or invade systems and use their resources. So,
| a list by IP is a picture of a moment in the past.
Yup - you hit the nail on the head - much spam comes from dynamic IPs -
that's *exactly* why many sites block entire dynamic pools