On Tue, 2012-04-03 at 08:46 -0700, Todd Lyons wrote: > On Tue, Apr 3, 2012 at 7:51 AM, [email protected] <[email protected]> > wrote: > >> > The host concerned has a PTR record, it's a bit of a mess, but it's > >> > there: > >> > dig -x 205.134.224.208 > >> > > >> > 208.224.134.205.in-addr.arpa. 17019 IN CNAME > >> > 208.128-255.224.134.205.in-addr.arpa. > >> > 208.128-255.224.134.205.in-addr.arpa. 65020 IN PTR > >> > whub28.webhostinghub.com. > >> > >> SOP for doing rDNS for non 8 bit boundaries. > > I'm sorry Todd, I don't understand that? > > SOP means Standard Operating Practice, sorry if the acronym didn't > translate well. > > When delegating reverse dns to a company, say for example our > 64.14.201.0/24 assignment, the registrar can very simply point > 201.14.64.in-addr.arpa to our nameservers because it's on an 8 bit > boundary.
Now that makes perfect sense! It's obvious now you say it, I can see exactly why it's done. Penny drops in a bit of a Eureaka moment. Thank you Todd. Really useful info. Ron -- ## List details at https://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
