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On Thu, Apr 15, 2004 at 03:10:12PM +0200, Stefan Engelbert wrote:
http lookups would be optional. So every mail operator could choose
himself to enable them or not......
Which sort of splits the spf community in two halves, those
using http lookups and those that do not. Better stick to a
uniform policy. The basic idea is that, given time, TXT
records will be standard for every dns hoster. Es
No, not really. HTTP is a kind of fallback. Same as some implementation
use CallerID as a fall back....
I for one would not consider spf if it involved http lookups.
If I change my mail server setup, i change my mx records. I
can then in the same place at the same time change txt
Not if as I said http is used as a fall back for domain owner which cannot
access their DNS server.
These people never change even their MX since that is all hosted somewhere and
they
dont have anyway access.
People which are able to change their txt records like u dont need to publish
http.
records. Doing it by http would involve another step. For
mailservers that don't even have http, i'd have to set up
extra http servers etc..
http runs over tcp, dns over udp.. tcp is connection-based,
takes time to setup (handshaking).. dns is connection-less..
faster, simpler..
Furthermore I agree fully with all the points made so far.
Although you can extend your counterargument that 'this is
all true for dns too' to a certain degree, the plain fact
that http uses much more resources (connection state
handling, bandwidth, parsing,
parsing? the content of the spf.txt is the same content as u get from the dns.
so
where is the difference in parsing?
....) makes this
counterargument flawed imho.
It's the same reason I don't like the domainkeys approach,
too much computational load. Too much administrative hassle.
Koen
-----Oprindelig meddelelse-----
Fra: owner-spf-discuss(_at_)v2(_dot_)listbox(_dot_)com på vegne af Stefan
Engelbert
Sendt: to 15-04-2004 14:25
Til: spf-discuss(_at_)v2(_dot_)listbox(_dot_)com
Emne: RE: [spf-discuss] Publishing of SPF Records
But why would it kill SPF? If I own domain abc.com I will be the
only one who can create http://abc.com/spf.txt so how can
somebody
else provide SPF functionallity to my abc.com domain?
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