The good news:
Two US internet service providers have pulled the plug on the firm McColo following an investigation by the Washington Post newspaper.
Anti-spam firm Ironport has seen junk mail levels drop by 70% since McColo was taken offline on 11 November.
On the other hand…
But, it warned, it will be a temporary respite from the menace of spam.
"It is an unprecedented drop but will be a temporary outage as the networks move from North America to places where there is less scrutiny," said Jason Steer, a spokesman for Ironport.