johnp at idimo
Aug 10, 2005, 4:07 AM
Views: 884
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Extracted from the spf-discuss list....
if the SPF
> community chose to assemble and publish proxy records for large ISPs
> that don't publish their own SPF records (e.g. something like
> "include:cox.net.proxy_records.openspf.org"), I'd be willing to use
> them if the DNS server setup for the proxy records looked reliable.
This is an option which I would be prepared to set up and administer, using input from all
those who are having such problems. I have a reliable DNS server (touch wood) and a remote
back-up, though I'd be happy if others would do further back-ups, or allow me access to do
it myself.
I will create TXT and SPF records for a subdomain of one of my own domains as proxy for
any domains that do not currently publish.
e.g. For comcast. and assuming I use spfhelp.net, I will add these lines to the zonefile
for spfhelp.net (thanks to ScottK for the IP ranges)
comcast.net.proxy.spfhelp.net. IN TXT "v=spf1 ?ip4:204.127.202.0/24
?ip4:204.127.198.0/24 ?ip4:216.148.227.0/24 ?ip4:63.240.76.0/24 ~all"
comcast.net.spfhelp.net. IN SPF "v=spf1 ?ip4:204.127.202.0/24 ?ip4:204.127.198.0/24
?ip4:216.148.227.0/24 ?ip4:63.240.76.0/24 ~all"
Anyone needing to use comcast could therefore add include:comcast.net.proxy.spfhelp.net to
their record.
I will post all such proposed records here and on spf-help for comment, amendment, etc.,
prior to actually doing them. I will also use the least disruptive method os zonefile
editing by adjusting the ttl's as needed.
Comments, criticism, advice, offers of help all welcome ;-)
Slainte,
JohnP.
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Proxy spf records
