Re: SPF records and DKIM signatures on ubuntu/postfix/mailman
Steve Holdoway <[email protected]>
| Newsgroups | gmane.org.user-groups.linux.new-zealand.general |
|---|---|
| Organization | Green Gecko Global Ltd. |
| Message-ID | <1318632760.2035.35.camel@steve-desktop> |
On Sat, 2011-10-15 at 11:39 +1300, Volker Kuhlmann wrote: [snip] > The reason for blocking requests from non-customers has more to do with > "why do something for the competition" than any security. At least xtra > was doing it much earlier than the dns security issues you mention. > > Volker > Sadly this is no longer true. With the increasing acceptance of DNSSEC, what used to be a trivial amount of UDP data passed back and forth is now a lot, lot larger, pushing a lot of the traffic over to TCP as well, with all that added overhead to content with as well. And, with increasing reliance on 'cloud computing' - whatever your definition - something like DNSSEC just has to be in place. So, the days where I ran DNS for the EMEA for a major international courier service off a pair of very old ( HP equivalent of ) i386's is long, long gone. Steve -- Steve Holdoway BSc(Hons) MNZCS <[email protected]> http://www.greengecko.co.nz MSN: [email protected] Skype: sholdowa _______________________________________________ NZLUG mailing list [email protected] http://www.linux.net.nz/cgi-bin/mailman/listinfo/nzlug