Microsoft, a major opponent of spammers, has sent out a spam mailing of its own. The letter was one of a series that was sent out to fight against the popularity of the Linux operating system.
Microsoft claims no wrongdoing by sending the spam, saying they followed the rules of the Can-Spam act. However, there is no noticeable "Opt-out" link anywhere in the email message.
Lawyers for Microsoft say they followed the rules of the Can-Spam act fully.