Used fake names in the emails’ "From:" lines, many times using the recipient’s own name – making it appear as if the recipient had sent the email himself;

Used the names of other legitimate companies in the emails’ "From:" lines;

Used forged email addresses in the emails’ "From:" lines in an attempt to hide the true source of the emails;

Used forged email addresses that led some to believe that their email accounts had been hijacked by spammers;

Used deceptive subject lines that falsely indicated that the emails were part of an ongoing conversation;

Used deceptive subject lines that falsely indicated that the email was about or from a legitimate company; and

Were routed through more than 500 compromised computers worldwide in order to hide the true source of the email.

outlines of Spitzer and Microsoft Fight Senders of Billions of Junk Emails
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