Justin Piszcz a écrit : > $ whois linendim.com > > Record created on: 2008-12-15 11:45:30.0 > Database last updated on: 2008-12-15 11:42:09.153 > Domain Expires on: 2009-12-15 11:45:31.0 > > A 1-second life domain name. > > First, is there an existing policy server out there that checks how many > days old a domain is? >
if you mean querying whois in real time, this is not possible. you will be blocked (by whois servers) if you do too many queries. if you mean using an RHSBL such as DOB, then check postfwd. However: - judging by the scores in spamassassin, this doesn't look very useful (I personally disable DOB in SA). - spammers have learned this and register domains ahead of time, so the "whois age" is less useful than it was. one needs to detect when a domain is first used in email, but there's no registry for this. > I know there is an RHSBL for it but this seems rather odd, if the domain > has expired/etc it would be nice to filter on these statistics..
