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Does a spam investigator need a license?
Joel "Jay" Fink’s business is at risk – that business being a wonderfully niche endeavor involving a hunt through your spam archive looking for things that may be legally actionable against the spam...
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Spam Resource Spotlight: Brad Gurley
Twenty years is how long Brad Gurley has been doing this deliverability thing. Impressive! From joining email service provider iContact as their fifth employee way-back-when, to growing his way into...
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Spamhaus Listing Myths: Fact or Fiction?
Back in the day, people used to complain that Spamhaus never really interacted with the broader email community. And to some degree they were right -- Spamhaus people sometimes avoided the public...
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Full email headers: What are they and how to access them (Updated for 2024)
Internet email messages have hidden headers (that email technology people commonly call "full headers" or "email headers") that can help you trace the source of a message and these can come in very...
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Gmail is 20 years old today
When newly launched twenty years ago today, April 1, 2004, people wondered if the Google's announcement of Gmail was a joke. Search-based email? A gigabyte of storage for free? Whaaa? But I guess it...
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Time for a change
It's time for a change! I've entered into a contract to sell Spam Resource, and the site is going to be rebranded as Pork Resource. Stay tuned for more details, and thanks to everyone whose readership,...
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Flapping DNS and what to do about it
Has this one ever happened to you? Your DNS record is there – and then it’s not. Or it’s there when you check certain DNS servers, but not others. Or you hit “reload” on a DNS lookup tool (like,...
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MAGY webmail screenshots from 2024
Someday, we'll look back and ask, does anybody have any screen captures of what the user interfaces of the main webmail providers looked like, back in 2024? If that's you, and you're looking back to...
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Spotlight on: Certified Senders Alliance
The Certified Senders Alliance (CSA) provides a certified IP list, as well as reputation data and training related to email marketing best practices. It is a service of the industry association eco, in...
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Not a dead email domain: gci.net
Mmm...never mind! As reported by the Anchorage Daily News, Alaska Public Media and others, Alaskan telecommunications provider GCI, having previously announced back in 2023 that they were getting out...
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Fun Friday: Fall Out Boy: Saturday
My friend Denise Miller has reminded me that we need more fun things in our lives and requested that I continue to post music periodically. At her request and suggestion, here's Saturday by Fall Out...
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MBP Spotlight: google.com
First in a new series: Who hosts what mail? MBP Spotlight is the brand new series here at Spam Resource where I’ll share ranking data for the top mailbox providers (including B2B!) based on where they...
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Spam Resource hits 4 million views!
WOW! Thank you everyone for your readership, friendship, shared knowledge and insight over the years. Thanks to your partnership and participation, Spam Resource has just reached 4 million views,...
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Ask Al: Help, we're getting URL blocked at Gmail!
Sree writes: Help! Our newsletter business is receiving the Gmail "unusual rate of unsolicited mail mentioning your URL" error message. Specifically: "421 4.7.28 Gmail has detected an unusual rate of...
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Microsoft: Intermittent STOREDRV.Deliver errors on April 9th
Are you tying to send mail to users at Microsoft OLC domains like Outlook.com and are receiving rejections back that look like this:532 5.3.2 STOREDRV.Deliver; Missing or bad mailbox Database...
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KumoMTA: Moving Beyond IP Reputation
Publisher's note: I asked Mike Hillyer, co-founder of Kumo Corp, the folks behind the new open source high-performance MTA platform KumoMTA, if he might want some blog space to talk about KumoMTA and...
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SFMC Deliverability Overview and Best Practices
Hey, look what I stumbled across! Chris Zullo, Salesforce Consultant and Business Puzzle Solver, did a most excellent job capturing my 2020 presentation on deliverability for Salesforce Marketing...
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MBP Spotlight: outlook.com
Who hosts what mail? MBP Spotlight is the new series here at Spam Resource where I’ll share ranking data for the top mailbox providers (including B2B!) based on where they fall in the top ten million...
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Gmail error: Receiving mail too fast?
Have you ever seen this SMTP error message?450 4.2.1 The user you are trying to contact is receiving mail at a rate that prevents additional messages from being delivered. Please resend your message at...
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Spam Resource Spotlight: Tony Patti
Tony Patti has worked in the email sphere for more than twenty years. An expert deliverability consultant (and builder/manager of deliverability service consulting as a practice), he’s somebody I could...
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