October was a busy month. In addition to on boarding multiple new clients, we got new desks, I went to Toronto to see M3AAWG colleagues for a few days, and had oral surgery. Happily, we’re finally getting closer to having the full office setup. What is an office without a Grover Cat? (he was so pleased he figured out how to get onto it at standing height). All of this means that blogging...
All of the technical security in the world won’t fix the biggest security problem: people. Let’s face it, we are the weakest link. Adding more security doesn’t work, it only causes people to figure out ways to get around the security. The more secure you make something, the less secure it becomes. Why? Because when security gets in the way, sensible, well-meaning, dedicated...
Return Path released an white paper today offering the Secrets of Successful Senders. I don’t think any of my readers will be surprised that it boils down to identity, reputation, and engagement. Return Path treats these as separate things and I understand why they do. I think however, that the identity and reputation are supporting players to the overarching issue of engagement. When...
It’s easy to tell if a domain is using SPF – look up the TXT record for the domain and see if any of them begin with “v=spf1”. If one does, they’re using SPF. If none do, they’re not. (If more than one does? They’re publishing invalid SPF.) AOL are publishing SPF. Geocities aren’t. For DKIM it’s harder, as a DKIM key isn’t published at a...
On Friday I talked a little about DMARC being a negative assertion rather than an authentication method, and also about how and when it could be deployed without causing problems. Today, how DMARC went wrong and a partial fix for it that is coming down the standards pipeline. What breaks? DMARC (with p=reject) risks causing problems any time mail with the protected domain in the From: field is...
All the authentication and DMARC in the world can’t save you from stupid. I just got a survey request from my bank. Or, at least, it claimed to be from my bank. From: Barclays International Banking Survey <internationalbanking@barclayssurveys.com> The mail passed SPF (though the SPF record suggests this is being mailed from all over the place) and was validly DKIM signed for...
Over the last few weeks I’ve seen a couple people get on mailing lists and make pronouncements about email. It’s great to have opinions and it’s great to share them. But they’re always a little bit right… and a little bit wrong. SPF is dead! This came from the new ESP of an experienced mailer. They were recommending not publishing SPF records because it was “an...
There’s been extensive and ongoing development of email through the years, but much of it has been behind the scenes. We were focused on the technology and safety and robustness of the channel. We’re not done yet, but things are much better than they were. The good part of that is there is some space to make improvements to the inbox as well. Over the last few months there have been a...
August was a busy month for both Word to the Wise and the larger world of email infrastructure. A significant subscription attack targeted .gov addresses, ESPs and over a hundred other industry targets. I wrote about it as it began, and Spamhaus chief executive Steve Linford weighed in in our comments thread. As it continued, we worked with M3AAWG and other industry leaders to share data and...
A bit of older news, but worth a blog post. Early in August, Gmail announced changes to the inbox on both the web interface and the android client. They will be pushing authentication results into the interface, so end users can see which emails are authenticated. These are not deliverability changes, the presence or absence of authentication will not affect inbox delivery. And the gmail Gmail...
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