Yes, the problem is just here. The PTR is not exist, but getnamebyaddr return some name, then RDNS success.
> > > > "" "domain.com" "211.149.111.76" "2003-09-25 13:51:59" "163.com" "domain.com" > > "[EMAIL PROTECTED]" "[EMAIL PROTECTED]" "S333DD" "RECV=OK" "" "4870" "B7C2Y0" > > > > Those IPs do not have an external PTR record. Example : > > > [EMAIL PROTECTED] davide]$ dig -x 211.149.111.76 > > ; <<>> DiG 9.2.1 <<>> -x 211.149.111.76 > ;; global options: printcmd > ;; Got answer: > ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 33427 > ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0 > > ;; QUESTION SECTION: > ;76.111.149.211.in-addr.arpa. IN PTR > > ;; AUTHORITY SECTION: > 149.211.in-addr.arpa. 86400 IN SOA ns.cnc.ac.cn. hostmaster.ns.cnc.ac.cn. 2002052201 10800 900 64800 86400 > > ;; Query time: 203 msec > ;; SERVER: 204.127.199.8#53(204.127.199.8) > ;; WHEN: Thu Sep 25 21:48:20 2003 > ;; MSG SIZE rcvd: 104 > > > > > > > - 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] > > - 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]
