Daniel J. Luke wrote: > On Jun 17, 2011, at 5:07 PM, Bjarne D Mathiesen wrote: >> >> That's really not the fault of postfix, but a piss-poor DNS system in >> the router. postfix uses the DNS services from the computer, and the >> computer queries external DNS services etc etc. > > true. > >> if the router or the >> local ISP don't provide quality service, then one can bypass these and >> use eg the openDNS servers. You can manually set this up in Network >> Preferences. > > be careful with openDNS and other providers as you want to make sure you have > them set to not do their 'magic' stuff (I believe openDNS has a setting you > can configure so they don't do their automatic redirection stuff if you want > to use it with a mailserver).
openDNS gives you the IP-address for their seach page when you request A-record but a 'not found' answer when you request MX-records dig @208.67.222.222 A qwerasdfzxcv.info dig @208.67.222.222 MX qwerasdfzxcv.info There's a list of open DNS-servers here: http://www.tech-faq.com/public-dns-servers.html I can remember the stink from a few years back when verisign started introducing this kind of thing : http://www.theregister.co.uk/2003/09/17/bind_developer_blocks_verisign_net/ http://www.theregister.co.uk/2003/09/16/all_your_web_typos/ http://www.theregister.co.uk/2003/01/28/verisign_violates_dns_iab/ > > If you're doing any volume of mail, it is useful to run a caching resolver > locally on your mail machine. Well, we've got at least bind9, djbdns and dnsmasq among the portfiles > -- > Daniel J. Luke > > +========================================================+ > > | *---------------- [email protected] ----------------* | > > | *-------------- http://www.geeklair.net -------------* | > > +========================================================+ > > | Opinions expressed are mine and do not necessarily | > > | reflect the opinions of my employer. | > > +========================================================+ -- Bjarne D Mathiesen København N ; Danmark ; Europa ---------------------------------------------------------------------- denne besked er skrevet i et totalt M$-frit miljø MacOS X 10.6.7 Snow Leopard ; 2.8GHz Intel Core i7 ; 16GB 1067MHz DDR3 http://webadmin.mathiesen.info/ _______________________________________________ macports-users mailing list [email protected] http://lists.macosforge.org/mailman/listinfo.cgi/macports-users
