Chung-Kwei succeeded in spotting almost 97% of junk mails.

BBC: NEWS | Technology | 'DNA analysis' spots e-mail spam

Junk e-mails are widely considered as one of the biggest annoyances on the web.

BBC: AOL targets spam e-mails

Spamhaus, a firm that identifies the source of junk e-mails, includes Mr Francis-Macrae on its list of professional spammers.

BBC: NEWS | Technology | Spammer's net name scam revealed

Last week, two senators reintroduced a bill to curb junk e-mails that failed in the last Congressional session after opposition from the direct marketing industry.

BBC: AOL targets spam e-mails