Reuters: DoCoMo<9437.T> wins spam-mail fight in Tokyo court

In the first court decision against Japan's spam mailers, who regularly flood wireless e-mail networks with randomly addressed advertisements for pornography or dating services, a Tokyo company was ordered to pay DoCoMo 6.57 million yen ($54,420). […]

More than 80 percent of the 950 million messages sent to DoCoMo's mobile e-mail service each day is unsolicited, a spokesman said, although much of that is filtered out before it reaches users.

DoCoMo said it spent more than four million yen returning e-mails sent to its network addressed to phone numbers that did not exist.