Spam Resource: All Things Deliverability
Since 2001, a blog and email newsletter published by Al Iverson. With over 500,000 words, collected in 1500+ articles and viewed more than four million times (so far), focused on the topics of email deliverability, email authentication and DMARC, stopping spam, dealing with spam folder and spam blocking issues, complying with modern sender requirements, and much more. Thanks for visiting!
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Auth: SPF, DKIM + DMARC

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And Also

A.I.: Artificial Intelligence (also, me, Al Iverson! But today, the focus is on Artificial Intelligence. I'll try to write it as A.I. to help make it clear). As A.I. rapidly …
I usually write about email, email marketing, and deliverability. And I try to keep it classy. But on Friday, I give myself permission to get weird. And what better way to do tha…
Introduction Email deliverability success is essential for ensuring your messages reach your subscribers' inboxes. For Klaviyo users, understanding best practices can signif…
Recently, I had the pleasure of being featured in Email Love’s "Email Peeps" series , where I got to talk about my journey in email technology, my thoughts on deliverab…
By one reckoning, Yahoo Mail apparently has 225 million active users . That's nothing to sneeze at. And they've been there since nearly the beginning of webmail, having a…
Today I’m focusing on email signup form best practices, or: how to keep the crap out of your list. You might think that nothing bad will ever happen to you, but it will. Even on…
Greetings, email marketers and other fellow humans of planet earth! It’s Friday, and you know what that means—it’s time to ditch the stress, embrace the groove, and get smooth. A…
Just a quick little peek at data today. This time around, it's month-by-month counts of MX records, in the top ten million domains, that point at servers with "Mimecast&…
It's time to talk data! And I do love talking data! Join me (Al Iverson) along with Guy Hanson and Danielle Gallant from Validity , on this upcoming free-wheeling webinar , …
Hey, fellow email geeks! Let’s talk about Gmail tabs. Love ‘em? Hate ‘em? Just kinda tolerate ‘em? I want to hear from you. I've been talking a lot lately about Apple Mail…
Did you know? Protonmail blocks most open tracking pixels. Proton Mail is a privacy-focused, encrypted email service intended to protect users' communications from surveilla…
More than one recorded video this week, huh? My apologies; I’m traveling this week and time to create content has been cut a bit short. Also, I’m admittedly quite proud of everyt…
Catch-Alls are Cool Are you using Google Workspace (formerly Gsuite) for email service? If you do, you might want to configure the domain as a “catch-all.” Meaning mail to any ad…
If you're seeing SPF alignment failures when using an email service provider platform, don’t worry! This is such a common point of confusion among senders (and it even came u…
Example SMTP Errors When sending email messages to the various AT&T consumer email domains (ameritech.net, att.net, bellsouth.net, currently.com, flash.net, nvbell.net, pacbe…