The author O'Connor supposed "within the next 25 years, the court believes racial expressions of identity will no longer be warranted".
"The court expects that 25 years from now, the use of racial preferences will no longer be necessary," O'Connor wrote.
MessageLabs , which runs outsourced e-mail servers for 700,000 customers around the world , said it had filtered out 27,000 infected e-mails in 115 countries as of Thursday morning .