Stephane, Since it sounds like you have looked, what proportion of domains you surveyed has a wildcard? What kinds of wildcards are there: MX wildcards? Wildcarded A records? Wildcarded TXT due to SPF?
-Jim Stephane Bortzmeyer wrote: > On Mon, Oct 06, 2008 at 04:09:38PM +0100, > John L <[EMAIL PROTECTED]> wrote > a message of 22 lines which said: > > >> I'd suggest doing a lookup for A for _domainkey.$DOMAIN, and if you >> get NOERROR (that is, 0 records but no error code), then check >> *.$DOMAIN. >> > > I've finally used such an algorithm, but more detailed (you can find a > lot of strange things in the DNS). I attach the Python module which > tests if a domain has a wildcard. > > But it does not solve completely my "find DKIM records" problem since, > now, I find the records only in non-wildcarded domains. The wildcarded > domains may be have DKIM and may be not, there is no way of finding it > in the DNS. So, it seems you cannot really survey the deployment of > DKIM by just asking the DNS (unlike what happens with SPF). > > Thanks for all those who helped. > > > ------------------------------------------------------------------------ > > _______________________________________________ > NOTE WELL: This list operates according to > http://mipassoc.org/dkim/ietf-list-rules.html _______________________________________________ NOTE WELL: This list operates according to http://mipassoc.org/dkim/ietf-list-rules.html
