A man described as Britain's most prolific spammer has been <A HREF="http://news.zdnet.com/2100-1009_22-5958081.html?tag=zdnn.alert">sentenced to six years of prison.</A> Peter Francis-Macrae's sentencing on Wednesday in the Peterborough Crown Court followed his six-week trial and his conviction on charges of fraudulent trading, concealing criminal property, threatening to destroy or damage property, making death threats, and blackmail. Francis-Macrae of Cambridgeshire was accused of defrauding thousands of people by tricking them into sending him money to register an .eu domain name on their behalf. He was also charged with sending fraudulent emails to companies and claiming they had to pay a renewal fee to avoid losing their domain names.