Botnet domains + DNS resolution

Just a note folks, whilst investigating why the domains associated with botnets weren't resolving (been receiving a plethora of e-mails for everything from SendSpace to HM Revenue and Customs to HSBC etc etc), I did a check on OpenDNS's servers and discovered an issue with their Lodon based server (still failed to resolve even after a cache check).All of their other servers are unaffected by