On Fri, Jun 02, 2006 at 09:37:46AM +0100, Graeme Fowler wrote: > On 01/06/2006 21:24, Marek Maj(c)herek Majchrowski wrote: > > Can anybody tells me, what i should do with this? > > How can I cat off the dnsloookup if it doesn't work... > > calling dnslookup router > dnslookup router called for [EMAIL PROTECTED] > domain = zytechnologies.com > DNS lookup of zytechnologies.com (MX) gave TRY_AGAIN > zytechnologies.com in dns_again_means_nonexist? no (option unset) > returning DNS_AGAIN > dnslookup router: defer for [EMAIL PROTECTED] > message: host lookup did not complete > > The first run on a "clean" pair of DNS resolvers not used to lookup that > domain before gave a response in 35 seconds, the second run took 0.18s.
Some DNS servers and/or resolvers don't handle SERVFAIL responses on dns lookups very gracefully. It could be that the resolver and/or recursive DNS server is attempting to retry the lookup over and over to each of the (supposedly) authoritative nameservers. There may be global commands that you can put in /etc/resolv.conf to dampen the retry attempts on lookups that may help. If you have access to another set of DNS servers, you may also want to try that as a temporary test to see if it helps isolate the source of the problem. -- Dean Brooks [EMAIL PROTECTED] -- ## List details at http://www.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://www.exim.org/eximwiki/
