How does email service provider filter spam messages?
With the coming of age email services, email service providers have been taught to filter spam messages. Read this ask experts thread to get an idea on how email service providers filter spam messages.
We normally uses Gmail, Yahoo, Rediffmail or Hotmail as email services. We daily get many messages and out of them some are automatically delivered to the Spam folder. I want to know, how does email service provider decide which email to choose for dropping into the Spam folder?