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Tag: DKIM

December 2016: The Month in Email

Happy New Year! We’re looking forward to some interesting new projects this year, both for our clients and for Word to the Wise. Stay tuned! December was a slow month for blogging, with everything going on. But we’re back on the horse now and ready to blog for 2017. List and subscription management continue to […]

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DKIM Canonicalization – or – why Microsoft breaks your mail

One of these things is just like the other Canonicalization is about comparing things to see if they’re the same. Sometimes you want to do a “fuzzy” comparison, to see if two things are interchangeable for your purposes, even if they’re not exactly identical. As a concrete example, these two email addresses: (Steve) steve@wordtothewise.com “Also Steve” […]

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Gmail showing authentication results to endusers

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 […]

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Don’t just follow the HOWTO

There are so many moving parts to ensure good email deliverability. Email marketers need to know marketing, they need to know email and they need to know design. The technical bits of email can be a challenge to learn, and many folks who write tutorials and How-Tos write them for a different audience than marketers. One […]

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A DKIM primer resurrected

I was looking for some references today back in old blog posts. This means I discover some old links are dead, blog posts are gone or moved, and information is lost. In this case it’s a post by J.D. Falk on deliverability.com. The link is dead (it looks like the whole website is dead), but […]

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Ask Laura: Can you help me understand no auth / no entry?

Dear Laura, I’m a little confused by the term “no auth / no entry”. Gmail and other major receivers seem to be moving towards requiring authentication before they’ll even consider delivery. Does this just mean SPF and DKIM, or does this mean the much more stringent DMARC, as well? Thanks, No Shirt, No Shoes, No […]

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Ask Laura: Do I have to publish DMARC?

  Dear Laura, I heard recently that both Gmail and Yahoo will require DMARC authentication in early 2016 or images will be automatically blocked. Is that correct? And if so, do you know when they will be requiring DMARC? A DMARC-Overwhelmed Admin Dear Overwhelmed, There are three things going on here, all of which are […]

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Should you publish DMARC?

I’ve been hearing a lot lately about DMARC. Being at M3AAWG has increased that. Last night we were at dinner and heard from the next table “And they’re not even publishing DMARC!!!!” I know DMARC is the future. I know folks are going to have to start publishing DMARC records. I also know that the […]

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Ask Laura: Confused about Authentication

  Dear Laura, I have a client moving from an external ESP to an internal system. They send approximately eight million messages per year, and these are primarily survey emails on behalf of their clients. We’ve had some conversations about authentication, and I’m trying to help them figure out if they just need DMARC or […]

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Things you need to read: 2/5/16

Ask the Expert: How Can Email Marketers Stay Out of Gmail Jail and in the Inbox? The expert in question is an old friend of mine, Andrew Barrett. I met Andrew online in the late 90s, and we worked together (briefly) at MAPS. He was out of email for a while, but I’m pleased he came […]

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  • AOL FBL change

    Reminder for folks, AOL is changing their FBL from address starting on Jan 17th. AOLlogoForBlogThe (in)famous scomp@aol.net is going away to be replaced by fbl-no-reply @ postmaster.aol.com. These messages will be signed with the d= mx.postmaster.aol.com. Time to update your scripts!No Comments


  • Vague reports of Yahoo problems

    A number of people, on different forums, have been asking if anyone is seeing a higher bounce rate than usual with Yahoo. Not sure exactly what's going on here. As I understand it, folks are talking with Yahoo about it. If I hear anything more, I'll share. For now, though, if you're seeing a small increase in Yahoo bounces (or other weirdnesses) others are seeing something odd, too.No Comments


  • Responsive design just got easier at Gmail

    Today Gmail announced they are supporting media queries in Gmail and Google Inbox. This should simplify the creation of emails for multiple platforms. The full list of supported rules can be found on the Google Developer Site.No Comments


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