Thank you for your comments regarding my article on SpamShield.
I agree that in theory, spammers may very well spread their mail over thousands of hosts at a time, thereby defeating our initial goal.
In practice, we can only hope this would become a tiring and diminishing task.
Let's keep an eye out for the next version of SpamShield.
© 2015, O’Reilly Media, Inc.
All trademarks and registered trademarks appearing on oreilly.com are the property of their respective owners.