Spam Resource: All Things Deliverability

The transition is complete, according to my little widget ! All AT&T consumer mailbox domains now have MX records that point directly to Yahoo Mail's infrastructure. The…

I'm not really anti-HTML email. Like many folks with a long history in the linux/unix world, once upon a time I used text-based email clients like pine and mutt, but that was…

Groups.io is a provider of email discussion group hosting that has been around a good long while ( launched in 2014 ) and serves up rather a lot of email. That gives them insigh…

I'm a strong advocate for double opt-in, a very specific email and permission verification process. The process works by, upon receiving an email address in a signup form, se…

Today on DELIVTERMS , the series here on Spam Resource where we help decode email and deliverability terminology, we're digging into something that's absolutely everywher…

Let us take a moment to talk about SMTP status codes. Specifically, the kind that start with the number 4. Say you've just sent out your latest email, whether it be a newslet…

As reported by a press release from Ziff Davis themselves, and here on MediaPost , media publisher-slash-tech company Ziff Davis has acquired Scott Hardigree 's  Email Indus…

Event alert! Do you want to help make the world a better place? So do I, and I want to help keep you out of the spam folder while you do it. In New Orleans on August 7th, yours t…

Looking to migrate your email traffic to a new ESP? Or maybe you're just trying to get serious about domain and IP warming for the first time? Either way, this new warming gu…

Some senders are reporting inconsistent, hard-to-pin-down authenticated-related delivery failures when sending to Microsoft domains. Here's a theory about on thing that might…

I've heard the question more than once: "Do Gmail and Microsoft's new sender requirements really apply to us? We're B2B. We're not sending to consumers."…

Before my current life in this email universe, I worked in print production and pre-press , helping to assemble assemble advertising layouts for various ad agencies and brands, u…

Got any orange.es subscribers on your list? Or any lingering addresses from domains like wanadoo.es, eresmas.com, or mixmail.com? Not for long, as Orange (aka MasOrange) is disco…

Way back in April 2024, I shared that Google was working on adding a new “subscription management” feature to Gmail. And shared how similar functionality looked at the time in Y…

Last week, yours truly (Al Iverson from Valimail ) was joined by my friend Jennifer Nespola Lantz from Kickbox for a deep dive webinar on Microsoft's new bulk sender requir…