http://issues.apache.org/SpamAssassin/show_bug.cgi?id=5777
------- Additional Comments From [EMAIL PROTECTED] 2008-01-11 01:03 ------- (In reply to comment #6) > (In reply to comment #5) > > (In reply to comment #4) > > > the impact is not much larger if ppl are querying for googlepages or > > > blah.googlepages.com. > > > > Nameserver caching of (many_names_here).googlepages.com versus domain.com may be rather different. > > It amounts to a potentially immediate and trivial DDOS attack against the public nameservers, limited mainly by how many subdomain sites can be automatically set up by botnets. That number is large. Jeff -- on this point -- does it make a difference to the querier's DNS cache, whether the domain or subdomain exists or not? In other words, a spammer can equally launch this attack by filling a spam with foo1.com, foo2.com, ... foo99999.com. They don't even have to register those domains -- the effect on the DNSBL's server will be the same. ------- You are receiving this mail because: ------- You are the assignee for the bug, or are watching the assignee.
