Deliverability Week 2024

DMARC: The good, the bad and the ugly

A series of red arrows pointed left and one green arrow pointing right.

DMARC is the newest of the authentication protocols. It compares the domain in the From: address to the domains authenticated by SPF and DKIM. If either SPF or DKIM pass and they are in the same organizational domain as the domain in the From: address then the email is authenticated with DMARC.

Read More

Who’s your Email Czar?

The gentleman with the excellent hat is Иван IV Васильевич, The Great Sovereign, Tsar and Grand Prince of all Russia, Vladimir, Moscow, Novgorod, Tsar of Kazan, Tsar of Astrakhan, Sovereign of Pskov, Grand Prince of Smolensk, Tver, Yugorsk, Perm, Vyatka, Bolgar and others, Sovereign and Grand Prince of Novgorod of the Lower Land, Chernigov, Ryazan, Polotsk, Rostov, Yaroslavl, Beloozero, Livonia, Udoria, Obdoria, Kondia and Master of all the Siberian Lands and Northern Countries.

Read More

Why Deliverability Depends

A common complaint about the advice or answers any deliverability person gives is that the generic answer to questions is: It Depends. This is frustrating for a lot of folks because they think they’re asking a simple question and so, clearly, there should be one, simple, clear answer.

Read More

Deliveries and Opens and Clicks

I always want to say “Emails, and Opens, and Clicks… Oh My!” when I’m talking about them.

Read More

Warmup is Communication

A still from Cargo Cult, by Bastien Dubois

During the war they saw airplanes land with lots of good materials, and they want the same thing to happen now.  So they’ve arranged to make things like runways, to put fires along the sides of the runways, to make a wooden hut for a man to sit in, with two wooden pieces on his head like headphones and bars of bamboo sticking out like antennas—he’s the controller—and they wait for the airplanes to land.  They’re doing everything right.  The form is perfect.  It looks exactly the way it looked before.  But it doesn’t work.  No airplanes land.Richard Feynman

Read More

Filter Evasion

It’s deliverability week, so everyone is talking about deliverability. But I’d like to take a moment to mention deliverability’s evil twin from the mirror universe – filter evasion.

Read More

Why Deliverability Matters

Deliverability matters because we are the conscience of our companies. We are the ones who tell our companies, and particularly the marketing team, no. We’re the ones looking out for the health of our company reputation, the recipient’s inbox and the email ecosystem as a whole.

Read More

Deliverability is Collaborative

Mailbox providers want happy recipients

Mailbox providers want their users to be happy with the mail they receive and the service they get. That’s driven by stark business reasons: acquiring new users is costly, happy users bring in revenue – whether directly, or indirectly via advertising – and their word of mouth helps bring in more users, and hence more revenue. That’s still true when the email service is bundled as part of a larger package, such as broadband service or domain registration.

Read More

Why Deliverability Matters to Me

Welcome to deliverability week. I want to especially thank Al for doing a lot of work behind the scenes herding this group of cats. He’s an invaluable asset to the community.

Read More

It’s Deliverability Week

What is Deliverability Week? Al Iverson decided it should happen, and asked a bunch of deliverability folks to share some of their thoughts about the deliverability industry – why do we do this? where did we come from? what’s next?

Read More