[ietf-dkim] Delegation semantics

[Bill.Oxley at cox.com]

http://www.mxlogic.com/emaildefense/comprehensive_protection.html?GCID=S
16104x002&KEYWORD=mx%20logic
these folks make a living by using delegated namespace.
Thanks,

Bill Oxley 
Messaging Engineer 
Cox Communications, Inc. 
Alpharetta GA 
404-847-6397 
bill.oxley at cox.com 


-----Original Message-----
From: ietf-dkim-bounces at mipassoc.org
[mailto:ietf-dkim-bounces at mipassoc.org] On Behalf Of John Levine
Sent: Tuesday, August 29, 2006 12:30 PM
To: ietf-dkim at mipassoc.org
Subject: Re: [ietf-dkim] Delegation semantics

>I think that the NS suggestion is a bad one for policy reasons. I am
>never going to delegate any part of my DNS. Space to a third party
>and I don't think anyone else is likely to either.

Mailers routinely delegate subdomains to their ESPs right now.  For
example:

$ dig email.orbitz.com ns

; <<>> DiG 9.3.1 <<>> email.orbitz.com ns
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 49736
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;email.orbitz.com.              IN      NS

;; ANSWER SECTION:
email.orbitz.com.       16536   IN      NS
bb1dns1.edc.dartmail.net.
email.orbitz.com.       16536   IN      NS
bb1dns2.ddc.dartmail.net.
email.orbitz.com.       16536   IN      NS
bb1dns3.ddc.dartmail.net.
email.orbitz.com.       16536   IN      NS
bb1dns1.ddc.dartmail.net.

R's,
John
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