I-mode black list becomes white list
KPN Mobile's i-mode uses a black list against spam. Users can build up a list with adresses that they don't want to receive mail from. Of course, this is the wrong way to prevent spam, since you can only put someone on the list once you have already received uncollicited mail! So you pay for data traffic caused by spam. It's good to see that KPN has admitted their mistake and want to change the system: now customers can build a white list of adresses that they want to receive i-mail from. This functionality will be built-in in the next generation i-mode devices.