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RE: What Meng said

2004-08-16 09:52:06

My apologies for the confusion.  You are correct that there are some
hold-overs from Caller-ID on that wizard, including the use of an _ep
subdomain.  The text of the wizard does need to be updated.  We'll get
this corrected ASAP. 

-----Original Message-----
From: John Glube [mailto:jbglube(_at_)sympatico(_dot_)ca] 
Sent: Friday, August 13, 2004 5:15 PM
To: Harry Katz; 'Meng Weng Wong'; 'Mark Lentczner'; 'Andrew 
W. Donoho'; 'Carl S. Gutekunst'
Cc: 'IETF MARID WG'
Subject: RE: What Meng said

Harry,

If one goes to:

http://www.anti-spamtools.org/SenderIDEmailPolicyTool/Default.asp
x

A wizard has been set up to assist folks in publishing what 
is called an 'E-mail policy document' which can be used by 
people who have implemented Sender-ID

I found this link by going to:

http://www.microsoft.com/mscorp/twc/privacy/spam_senderid.mspx

(It is referenced under related links.)

If you run through the wizard, at the last page, you will 
find the following statement:

Your E-Mail Policy Document must be published in DNS records 
of type TXT in the subdomain "_ep" under your domain. Consult 
the documentation of your DNS administration tools for 
further details on publishing this.

It is my understanding:

* the marid protocol for SPF (to be renamed Sender-ID) does 
not require publishing the 'E-Mail Policy Document' in the 
subdomain "_ep." 

* this is a carry over from the Caller-ID protocol.

* with the merger of SPF and Sender-ID this requirement was dropped

With the media drive now underway to get the word out about
Sender-ID:

* if people go to the SPF site they will receive one 
instruction for publishing an Sender Policy Framework in DNS 
records of type TXT;

* if people go to the anti-spamtools.org site, people are 
going to be lead to believe they have to publish their 
'E-Mail Policy Document' in DNS records of type TXT in the 
subdomain "_ep."

With the ongoing issue of a change in version string and 
whether you have to publish one or two records, this raises concerns.

I am not wanting to suggest any malice on anyone's part. 

I suspect what happened is that someone in setting up the 
wizard simply read the wrong document.

If you scroll down the page at:

http://www.microsoft.com/mscorp/twc/privacy/spam_senderid.mspx

you will note that the: 

Sender ID Draft Specification: MTA Authentication Records in DNS"

is the version dated June 23, 2004 which is now out of date.

Can we get this rectified so that the wizard is based on the 
most recent version of the protocol? 

Otherwise I suspect people are going to be publishing the 
wrong records in the wrong place.

John

P.S. I also note the following additional statements on this page:

http://www.microsoft.com/mscorp/twc/privacy/spam_senderid.mspx

concerning the wizard.

Note: This tool is in beta, pending IETF approval. SPF 
records created 
with this tool will require later revisions.

To check for the SPF record in incoming mail, your ISP or system 
administrator will need to update to Sender ID-compliant software to 
check for the Purported Responsible Address (PRA) of incoming mail.

If you are a software developer and are interested in 
implementing the 
PRA check in your software, please review the terms of the Caller ID 
for E-Mail implementation license agreement before you begin. Please 
note that Microsoft does not require a license agreement for 
individuals, companies, or ISPs who wish only to publish 
their Sender 
ID SPF text records.

I simply reference this material in passing.

John Glube
Toronto, Canada

The FTC Calls For Sender Authentication
http://www.learnsteps4profit.com/dne.html


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