RE: [Asrg] BCP Idea: Move dynamic IP addresses to designated areas

["George Ou" <george_ou at netzero.com>]

I believe SenderID uses an XML format which is essentially plain text.
SPF or CallerID (one or the other or both) used plain text I think and
SenderID should be backwards compatible with one or both previous
separate standards.  That is what I remember reading but somebody please
correct me if I'm wrong.  If my recollection is accurate, then XML is
just an ASCII format DNS record so as long as it fits in the maximum
number of bytes allowed.  No change in the DNS servers need to be made.
I don't think the creators of SenderID would be so dumb to produce a
standard that requires code change in all the DNS servers of the world.
Additionally, I don't think Yahoo's DomainKeys standard requires a DNS
code change either, nor does it require you to pay Verislime $500 a year
to sign a few bits for you.  That is just the portion that needs to be
done on the sender's end.  The receiving SMTP servers would have to
query the authoritative DNS servers of the sending domain for the
SenderID and DomainKeys information and make judgments to permit, deny,
or flag the incoming mail.



George



-----Original Message-----
From: asrg-bounces at ietf.org [mailto:asrg-bounces at ietf.org] On Behalf Of
Walter Dnes
Sent: Saturday, July 03, 2004 4:44 AM
To: ASRG list
Subject: Re: [Asrg] BCP Idea: Move dynamic IP addresses to designated
areas


On Thu, Jul 01, 2004 at 02:06:18PM -0700, George Ou wrote

> When you say "modifications" to DNS.  Are you implying that this would

> somehow require a code change in the DNS servers of the world? That is

> not requred by SenderID (consolidated CallerID and SPF). It doesn't 
> take much to implement SenderID.  You just need to add a SenderID 
> record to your DNS server.

  Is it a plain TXT record, or does it piggyback as some other type of
currently existing record?  If niether, then DNS clients and servers
*WILL* have to be modified.

-- 
Walter Dnes <waltdnes at waltdnes.org>
Email users are divided into two classes;
1) Those who have effective spam-blocking
2) Those who wish they did

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