--- In [email protected], Hemchand <hemchandra_...@...> wrote: > > Do you do dig on DNS server for microsoft.com.what is the result ? > > What is the DNS server configured on Qmail server ? > > You configured ISP DNS server as forwarder in your local DNS ? > > > ********************************************************************* > > > > Thanks & Regards > > > > Hemchand
------------- Hi Hemchand, Given below are the query from a mail server. i.e. executed dig on a local mail server. It queries a local DNS server 172.16.1.31 based on BIND9. #dig microsoft.com ; <<>> DiG 9.3.3rc2 <<>> microsoft.com ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 54880 ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 5, ADDITIONAL: 5 ;; QUESTION SECTION: ;microsoft.com. IN A ;; ANSWER SECTION: microsoft.com. 3527 IN A 207.46.197.32 microsoft.com. 3527 IN A 207.46.232.182 ;; AUTHORITY SECTION: microsoft.com. 170686 IN NS ns5.msft.net. microsoft.com. 170686 IN NS ns1.msft.net. microsoft.com. 170686 IN NS ns2.msft.net. microsoft.com. 170686 IN NS ns3.msft.net. microsoft.com. 170686 IN NS ns4.msft.net. ;; ADDITIONAL SECTION: ns1.msft.net. 170659 IN A 65.55.37.62 ns2.msft.net. 170659 IN A 64.4.59.173 ns3.msft.net. 170659 IN A 213.199.161.77 ns4.msft.net. 170659 IN A 207.46.66.126 ns5.msft.net. 170659 IN A 65.55.226.140 ;; Query time: 1 msec ;; SERVER: 172.16.1.31#53(172.16.1.31) ;; WHEN: Thu Aug 13 13:17:01 2009 ;; MSG SIZE rcvd: 241 ------------------------------ Now DIG for ANY for the same domain # dig any microsoft.com ; <<>> DiG 9.3.3rc2 <<>> any microsoft.com ;; global options: printcmd ;; connection timed out; no servers could be reached Now if I do the same query from caching DNS server based on djbdns (dnscache) then I get a response. # dig any microsoft.com @172.16.1.220 ; <<>> DiG 9.3.3rc2 <<>> any microsoft.com @172.16.1.220 ; (1 server found) ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 6590 ;; flags: qr rd ra; QUERY: 1, ANSWER: 5, AUTHORITY: 5, ADDITIONAL: 0 ;; QUESTION SECTION: ;microsoft.com. IN ANY ;; ANSWER SECTION: microsoft.com. 172800 IN NS ns1.msft.net. microsoft.com. 172800 IN NS ns2.msft.net. microsoft.com. 172800 IN NS ns3.msft.net. microsoft.com. 172800 IN NS ns4.msft.net. microsoft.com. 172800 IN NS ns5.msft.net. ;; AUTHORITY SECTION: microsoft.com. 172800 IN NS ns5.msft.net. microsoft.com. 172800 IN NS ns1.msft.net. microsoft.com. 172800 IN NS ns2.msft.net. microsoft.com. 172800 IN NS ns3.msft.net. microsoft.com. 172800 IN NS ns4.msft.net. ;; Query time: 235 msec ;; SERVER: 172.16.1.220#53(172.16.1.220) ;; WHEN: Thu Aug 13 13:22:57 2009 ;; MSG SIZE rcvd: 199 Here the sad part is that Qmail makes a query for ANY and not MX which it should ideally do. I dont understand why! Secondly, Bernstein's djbdns helps qmail get around this problem. :(
