Email

Something’s Cooking at IETF with Email Authentication

A few months ago, Ted Hardie (AD of Applications for the IETF) informed the MARID WG in the closure announcement as follows: "Given the importance of the world-wide email and DNS systems, it is critical that IETF-sponsored experimental proposals likely to see broad deployment contain no mechanisms that would have deleterious effects on the overall system. The Area Directors intend, therefore, to request that the experimental proposals be reviewed by a focused technology directorate..."

2004: The Year That Promised Email Authentication

As the year comes to a close, it is important to reflect on what has been one of the major actions in the anti-spam arena this year: the quest for email authentication. With email often called the "killer app" of the Internet, it is important to reflect on any major changes proposed, or implemented that can affect that basic tool that many of us have become to rely on in our daily lives. And, while many of the debates involved myriads of specialized mailing lists, standards organizations, conferences and even some government agencies, it is important for the free and open source software (FOSS) community as well as the Internet community at large, to analyze and learn lessons from the events surrounding email authentication in 2004.

A Political Analysis of SPF and Sender-ID

In my spare time when I'm not dealing with the world of e-mail, I'm a politician so now and then I put on my cynical political hat. At the FTC Authentication Summit one of the more striking disagreements was about the merits and flaws of SPF and Microsoft's Sender-ID. Some people thought they are wonderful and the sooner we all use them the better. Others thought they are deeply flawed and pose a serious risk of long-term damage to the reliability of e-mail. Why this disagreement over what one might naively think would be a technical question?

The FTC Authentication Summit

The Federal Trade Commission and NIST had a two-day Authentication Summit on Nov 9-10 in Washington DC. When they published their report explaining their decision not to create a National Do Not Email Registry, the FTC identified lack of e-mail authentication as one of the reasons that it wouldn't work, and the authentication summit was part of their process to get some sort of authentication going. At the time the summit was scheduled, the IETF MARID group was still active and most people expected it to endorse Microsoft's Sender-ID in some form, so the summit would have been mostly about Sender-ID. Since MARID didn't do that, the summit had a broader and more interesting agenda.

EFF Files Brief in Support of Email Privacy

The Electronic Frontier Foundation (EFF) has submitted a friend-of-the-court brief in a case that could have a profound effect on the privacy of Internet communications. The brief argues that the decision in US v. Councilman, soon to be reheard by the full First Circuit, should be overturned.

AOL Fires Across the Bow of Spam-Friendly ISPs

The North American Network Operators Group (NANOG) conference, a gathering of Internet Service Provider (ISP) engineers and vendors convenes three times a year for mostly technical conversation along with social networking. The recent NANOG conference in Reston Virginia saw some unusually direct talk about Spam and the ISPs that tolerate it from America Online's Postmaster, Charles Stiles.

Sender-ID Back from the Dead

With the closure of IETF's MARID group a month ago, many of us have left Microsoft's Sender-ID standard for the dead. After being rejected by the Apache Foundation and the Debian Project over licensing issues, and causing the closure of MARID for some of the same issues (in addition to already long running technical ones), some thought that Microsoft may have just buried it and gone on to better things like IETF's new MAILSIG group (in formation). But just like the ghost of Hamlet's father it just refuses to die and now it looks like it is coming back to life in a new reincarnation...

Why DomainKeys is Broken

The recent testing by Gmail of DomainKeys affords an opportunity to look again at what the impact of it may be in any attempt to introduce a Domino addin to verify DomainKeys signatures. I have here a sample of an email sent from Gmail and that same email after being delivered to the in-box of a Notes/Domino user who prefers MIME. There are differences which make DomainKeys a real problem at Domino shops (and, I suspect, others).

Can TCP/IP Survive?

The following article is an excerpt from the recently released Internet Analysis Report 2004 - Protocols and Governance. Full details of the argument for protocol reform can be found at 'Internet Mark 2 Project' website, where a copy of the Executive Summary can be downloaded free of charge. ..."In releasing this section for comment, I would like to point out that the report's conclusions are based on a cumulative examination of various protocols and systems. We are at a point of time where other protocols and systems are equally problematic -- the report points to some significant problems with DNS structure and scalability, and also points out that, to all intents and purposes, the basic email protocol, SMTP, is broken and needs immediate replacement."

The Rumors of Sender ID’s Demise Are Exaggerated

While several news stories are reporting that Sender-ID has been killed, that is not entirely true. While Sender-ID in its current form is dead because of Purported Responsible Address (PRA), the compromise version with MAILFROM and PRA scopes is not. Also, the co-chairs want to stay away from any other alternative algorithms that do RFC2822 checking because of possible Intellectual Property Rights (IPR) claims by Microsoft on that as well. Andrew Newton, one of two co-chairs of the working group, wrote in an email today to the group's discussion forum...