Hey, Al! I was wondering if you could provide some guidance about SPF record format. Is it better to list the exact IP(s) in the SPF record? How about using the SPF dash (-all), …
Over on the Kickbox blog , my colleague Jennifer Nespola Lantz talks about sending domains and what you need to think about if you want to share domains between multiple email p…
It's always good to hear about growth of the good kind of spam. Hormel seems to be doing very well during these crazy times. From CNBC : “That’s incredible. We’ve had to ann…
Ask Al: We're a restaurant that just opened. We signed up for an email service provider (ESP) platform and we're looking to buy email lists to get started. Where should w…
I had a customer ask me yesterday, why is their ESP trying to force them to implement CAPTCHA on their signup forms? They're not spammers. Well, unfortunately, it's usual…
SocketLabs’ Brian Godiksen and Campaign Monitor’s Travis Hazlewood joined forces in this excellent blog post to explain what can go wrong when you use a subdomain (under a domai…
I can't tell if this article from Joe Queenan for the Wall Street Journal (paywall; sorry) is a joke or not. Relevant excerpt: "Just one example [of legitimate email go…
Per notification on the Mailop mailing list on November 24, 2021, "Tucows / OpenSRS is executing an upgrade that will result in new SMTP outbound IP addresses being used wi…
Back in November, Spamhaus reported on how somebody managed to send a bunch of forged email through real FBI email servers . Brian Krebs broke down how it happened : The email re…
Hey! I know that people find the ISP domain guides useful, so I thought I'd fire up the blog machine to share info about our friends at American telecommunications company C…
You'll remember that recently I explained how 1Password now has its own "hide my email" feature (with a bit of help from Fastmail), for those who may not be into u…
I hope everyone has a happy and safe Thanksgiving Holiday. Maybe you've got a long weekend ahead or perhaps you'll need to be up and ready to provide deliverability suppo…
Validity's Mathieu Girol has announced that Telecom Italia will now be offering an ISP Feedback Loop through the Validity Universal FBL service . If you manage feedback loop…
Katherine Skiba for AARP reports how in just one particular month in 2021, five hundred (!) different consumer brands were hit by phishing attacks -- not just Sam's Club! An…
Do you use Zimbra? Zimbra Collaboration, formerly known as the Zimbra Collaboration Suite (ZCS) before 2019, is an open-source collaborative software suite that includes an emai…
From The DRIP : More great content from Lucy Mazalon . This time around, she details what Salesforce Pardot does to help users deal with non-human interactions, aka bot and secur…
I've blogged about using OpenDKIM with Postfix , having myself run the two together for a quite a number of years now. I've set up enough servers from scratch to have co…
From our friends at Spamhaus via Twitter today (Saturday, November 13th), here's a warning about fraudulent US Federal Bureau of Investigation (FBI) emails that are sending …
I'm saddened to find that pumpkin spice spam didn't seem to be available this year, but if you're looking for a spammy meal in the spirit of the season, this recipe f…
The end of an era! Do you remember your first BlackBerry? I sure do, that big blue blob of a device with a fantastic keyboard and SSH that worked inside the work firewall (shh, …
Hey, if you're wondering who the heck I am, the fine folks at Kickbox just published a Q&A between myself and my new (to me) colleague Jennifer Nespola Lantz. Click on ov…
DMARC is not a magic bullet that shoots your mail straight to the inbox. But it does two things well and these two things are (or should be) important to email senders, marketers…
Yahoo announced a shutdown of Yahoo Mail in China (yahoo.com.cn and yahoo.cn) to take place back in 2015. In 2019, the domains seemed to be resurrected , but they’ve since gone …
You'll recall me warning recently that using Spamhaus data to protect your mail server is a bad idea if you're using open or public DNS resolvers . TL;DR? Spamhaus is wor…
How do I use OpenDKIM with multiple domain names on a single postfix server? That's a question I myself had when I first set up my current VPS to host my current email system…
Looking for guidance on how to create your BIMI logo file? Valimail has a pretty good guide that explains the requirements and they also explain what to keep in mind when creati…
I've got just enough time for a quick post today, to share with you this very useful DMARC Dictionary put together by the fine folks at dmarcian . Check it out ! And since t…
Having trouble sending mail to mail.mil? You're not alone. One of their three authoritative DNS servers (sdns3.csd.disa.mil) for the domain mail.mil appears to be unreachable…
Is this every possible blog post or FAQ page explaining Apple's MPP changes aka the death of open tracking? No, probably not. But here's a bunch. Some I found myself, oth…
American multinational telecommunications conglomerate Comcast , most well-known to us Internet users here in the US as the provider of cable modem-based internet service Xfinity…
You did it! You got Yahoo or Microsoft to unblock you. Perhaps you even figured out why they "hate" you . Perhaps your friendly neighborhood deliverability consultant…
The good people at email platform provider Fastmail (whom I've blogged about more than once previously ) are dealing with a distributed denial-of-service ( DDOS ) attack. …
This isn't the first time I've blogged about vegan SPAM , which is a sentence I never thought I would write. But here we are, and it's making my brain hurt. From VegN…
CM Group has announced a merger with email service provider/customer engagement platform Cheetah Digital (aka CheetahMail, once upon a time owned by Experian , later spun out sta…
From Spamhaus: Here's a bonkers tale about a spamming doorbell. Oof, crappy "internet of things" devices are a scourge unto the internet. Alex Grosjean shares this …
Do you use any of the Spamhaus blocking lists (DNSBLs) to protect yourself from inbound spam and email threats? If so, you're not alone. The Spamhaus data is quite popular an…
Multiple sources are reporting that Google Postmaster Tools (GPT) has returned. I've confirmed it myself; graphs and data are back. As previously mentioned , Google Postmast…
If you subscribe to Spam Resource via email, thank you! No matter how you choose to consume this content, I appreciate you. But the email subscribers are helping me keep my skil…
Lucy Mazalon from THE DRIP recently explained the good marketing reasons that would drive you to want to implement a winback campaign : "Marketing considered these leads qu…
Just recently, I shared my top five (plus) tips on how to be prepared to maximize deliverability success this holiday season. It's a starting point, and I hope you found it …
Here's one I almost missed, from a couple of weeks ago: According to Wired, Cloudflare is moving into the email security space . The goal? To better protect against email-del…
I've received multiple reports from different folks that Google Postmaster Tools (GPT) and Google's DMARC reporting have both been offline since sometime around October …
Remember EML files? I do. Back in the day (we’re talking the late 1990s here), Microsoft’s Outlook Express email client for Windows seemed to be the primary place where EML file…
Don't just take my word for it! I like to check in with other smart folks from time to time and see what they have to say about email deliverability. This time around, I reco…
Is it on topic for my blog? Maybe not, but it has come up in conversation enough times already that I think people are interested about it. So here's a quick bunch of links f…
"It’s like Apple’s new Hide My Email feature, but it works everywhere," according to The Verge . And it's powered by email platform Fastmail , perhaps a bit of a ni…
While all the talk of what's slick and hot and next seems to focus on adding AI to this and building the blockchain version of that, it still sounds to me like email is where…
It’s pumpkin spice season! Can you feel the chill in the air? Me, neither -- today’s projected high temperature is 77 degrees (F) here in my adopted hometown of Chicago. Nonethe…
