Microsoft E-Mail Looks Like Spam to Some Recipients (washingtonpost.com) washingtonpost.com - For a year, Microsoft Corp. has extolled the virtues of the Can-Spam Act, which Congress passed in late 2003 to crack down on purveyors of unwanted bulk e-mail. The company, with other Internet and marketing firms, helped craft the act and has sued several spammers under its provisions.