How do I remove IP from sorbs.net blacklist?
It would seem that SORBS is having a database problem right now, and is blocking a lot more than it usually does. This may be a transient issue: http://isc.sans.edu/diary.html?storyid=9685
rbl
What are the best methods for catching snowshoe spam?
Is this becoming a real problem for your users? I’d recommend a full-on mail filtering service at this point. Bayesian isn’t really that hot anymore. Reputation, RBL, header/intent-analysis and other factors seem to help more. Consider a cloud filtering service to combine multiple approaches (and collective volume) to provide better protection (I use Barracuda’s ESS … Read more