Geo. wrote:
Blacklists are just one kind of filter. If we could load software that allowed us to forward spams caught by other filters into it and it maintained a DNS blacklist we could have our servers use, we wouldn't need big public rbl's, everyone doing any kind of mail volume could easily run their own IF THE SOFTWARE WAS AVAILABLE. A distributed solution for a distributed problem.
The benefit of using a blacklist like monkeys or ordb is that there is only one removal process for all the mail servers. The issue is that when the webserver is dDOS'd, it is very hard for people to get removed. Running local blacklists on common themes (such as open proxy/open relay) has the same issue. Yes, one can blacklist the site, but how do you get it delisted once the problem is fixed? I had openrbl.org in my rejections for awhile so that people could find all the blacklists that they were on. Since the dDOS of openrbl, I've had to change it to my local scripts which don't cover near what openrbl did. -Jack