question (Score 1)

all users of cable modems in north america are required to use a 24.xxx IP. So, why arent all email servers required to use a predetermined range of IPs, eg. 25, 64, or one of the yet-to-be-assigned ranges. If all spammers were kept within one range, it would be far easier to stop spammers (they couldnt rent a fly-by-night IP in a different range, for example), and to catch them when they do spam. There are other benefits (reducing virii, worms, etc.) that would be produced if an email server range were to be established. H0B0