On Sun, 8 Apr 2007, Davide Libenzi wrote: > On Sun, 8 Apr 2007, Ivo Smits wrote: > > > It SHOULD check at the nameservers for yahoo.com, if they return the > > requested record (MX), the resolver has its answer (which is the case!), if > > it does not return the requested record type, it should retry at the > > returned NS records. > > It does. It tries to go the deeper as possible in the NS hierarchy, then > issues the query. I'll try to debug, even if the fact that dnsreport > reports "broken DNS" should be an hint.
That seems really screwed: - A query for returns.bulk.yahoo.com. NS returns an SOA record pointing to @ns1.yahoo.com. - A query for returns.bulk.yahoo.com. NS at @ns1.yahoo.com. returns returns.bulk.yahoo.com. being a CNAME for mailer1.bulk.scd.yahoo.com. - A query for mailer1.bulk.scd.yahoo.com. NS at @ns1.yahoo.com. returns mailer1.bulk.scd.yahoo.com. being a CNAME for t1.bullet.scd.yahoo.com. - A query for t1.bullet.scd.yahoo.com. MX return a broken record [EMAIL PROTECTED]:~$ dig t1.bullet.scd.yahoo.com. mx ; <<>> DiG 9.3.4 <<>> t1.bullet.scd.yahoo.com. mx ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 28320 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 7, ADDITIONAL: 7 ;; QUESTION SECTION: ;t1.bullet.scd.yahoo.com. IN MX ;; ANSWER SECTION: t1.bullet.scd.yahoo.com. 1800 IN MX 0 . - Davide - To unsubscribe from this list: send the line "unsubscribe xmail" in the body of a message to [EMAIL PROTECTED] For general help: send the line "help" in the body of a message to [EMAIL PROTECTED]
