Spam Resource: All Things Deliverability

Emanuel writes: "I need assistance with Senderbase. What ISP report to Senderbase? Is there a way to view Senderbase complaints? We add all ours IPs in the feedback loop, bu…

Google has long provided support for the list-unsubscribe header (as defined in RFC 2369 ) in Gmail. It is listed in their bulk sender guidelines as "strongly recommended.&…

Over on the Litmus blog, Chad White shares why marketers shouldn't panic or try to disable the list-unsubscribe header on their email messages. Great insight, and the resear…

It's kind of rare, but not rare enough. Every now and then I hear of a client who is seeing intermittent DKIM failures at Microsoft Outlook.com/Hotmail properties. A Delivery…

Are you one of the many millions of unlucky souls receiving spammy calendar invites? Apple is apparently aware of and working to address this type of thing, according to the iMo…

Can't beat that headline. UK ISP Virgin Media is having a few problems with its spam filters, reports the Register. Previously hosting user mailboxes on Google-managed syste…

Over on the Word to the Wise blog, Laura Atkins explains what happened with that spate of short-term MegaRBL DNSBL listings you may have noticed last week.

Time for a distraction. The Staunton (VA) News Leader reports on the Virginia Military Institute's Spam challenge, wherein chefs are tasked to "create an entree and two …

Hey, November and December are a big, important time period for online retailers. Lots of people always ask me what they should do to minimize the risk of deliverability problems…

Google announced an updated version of the Gmail email client for iOS devices today . The big new enhancements seem to be "undo," "swipe to archive or delete"…

Just a few more days until the election, and then everybody can calm down and get back to their normal lives, I hope. Every time I read the Washington Post, I see another article…

Founded in 2003, Barracuda Networks provides anti-spam and security-related hardware and services and was believed to have more than 150,000 clients as of 2014. Looks like if Bar…

Jess Nelson of MediaPost's EmailMarketing Daily shares news of the first-ever email client for the Xbox : MailOnX. Though, designers, I wouldn't necessarily start worryin…

SC Magazine shares details of a Symantec report identifying student loan forgiveness spam as a path for the unwitting to get infected with malware . Particularly timely, given al…

Wendy Davis of MediaPost reports on a challenge to the TCPA (Telephone Consumer Protection Act), the US law that is the basis of US prohibition against unsolicited text messaging…

It is being reported that Yahoo! Mail has disabled the ability for users to enable email forwarding. If you already have the feature enabled, you might be fine. But if not, there…

If you received an email message in your Gmail inbox, Google provides easy-to-read authentication results, showing you if the email message in question properly passed SPF authe…

A few months ago, I posted about " SPF Lockdown ," a simple way to use an SPF (sender policy framework) DNS record to tell the world that a given domain sends no mail. …

On Thursday, AOL launched iOS and Android versions of "Alto," a "proprietary email intelligence engine built to analyze and restructure the mountain of valuable da…

ISP Feedback Loops (FBL) are valuable for email senders and email service providers (ESPs). It provides valuable information on who is complaining about your mail. Not only does …

Mailman is a very popular open source mailing list management software package. It's been around for a long time -- since the late 1990s, according to Wikipedia . Sites using…

Litmus recently shared news that is sure to make email designers light up with glee: "On August 31, 2016, Gmail began supporting the CSS property display: none;. And today, …

SendGrid's Paul Kincaid-Smith's has a post up this morning about the "tsunami of unwanted email" generated by the bad guys out there using botnets to subscript…

This is pretty slick. When is the last time you selected "View Source" in Gmail to look at the raw headers and body content of an email message? As of a couple of days …

Back in 2014, MailChimp published data showing what happens when you mail to purchased lists. Though it is now a couple of years old, it's still solid research and quite rele…

Microsoft recently announced that on November 1, 2016, they will stop generating updates for Microsoft Exchange's "SmartScreen" spam filters used in Microsoft Excha…

If you're having deliverability issues, I can tell you from my experience that you aren't really going to be able to get back to the inbox if any of the following types o…

Kayla Lewkowicz of Litmus breaks it down:  Seven common deliverability-related assumptions that just aren't true. She explains whether or not it's OK to use FREE in a su…

A representative of Facebook confirmed for me that the email service handling mail for facebook.com email addresses is no more. PC Mag  had previously shared that FB was warning …

In case you've been living under a rock, or you've been lucky enough to not be affected, here's the deal: Some bad guys, probably Russian or Eastern European, have de…

Since about 6:00 am eastern this morning, Thursday, August 25, Yahoo has been deferring delivery attempts from almost everyone ESP or mail platform I'm hearing from. My guess…

Someone asked me the other day, where can they get a new IP address? Their current IP address is "blacklisted" at Yahoo and Hotmail, I was told. It's easy enough to…

Google just announced that if a message received at Gmail cannot be authenticated by way of either DKIM or SPF, the user interface is going to show a question mark in place of th…

Verizon announced today that they are buying (most of) Yahoo for 4.8 billion dollars in cash. Back in 2015, they purchased AOL for 4.4 billion dollars. This means that three di…

If you work the abuse desk for an email service provider, you've undoubtably gotten spam reports from angry Spamcop users who think that your ESP, your employer, is "re…

Periodically I create a virgin Gmail account and sign it up for something, to see what other kind of stuff might end up in the inbox. On February 22, 2010, I clicked on a single …

Word to the Wise's Laura Atkins is quoted in this article from Wired, " Mailchimp Sends a Billion Email a Day. That's the Easy Part ." It's not a bad primer…

I've been asked this question pretty regularly: How do I tell the world that a certain domain of mine isn't valid for sending email? What about typo domains, bad domains?…

It's been just over five years since a particular goober harvested his LinkedIn contact list and spammed me and a bunch of other folks. Consider that the next time it happen…

Various online sites are reporting that Apple's iOS operating system version 10 is going to add support for the list unsubscribe header found in many email messages. In case …

Another spammer put under the microscope! Brian Krebs reports on the FBI arrest of Michael A. Persaud , reported to be one of the world's top ten spammers.

Ah,  Sanford Wallace . 1990s spammer, widely blocked and blacklisted, one of a few big bad spammers who made the rest of us realize that spam was a real problem and that we had t…

"Send to Dad by Sunday midnight!" the email's subject line exclaims. My father is currently in hospice care. He isn't reading a lot of emails. He probably doesn…

I have never liked capitalizing internet or web, previous versions of the AP Stylebook be damned. I guess I'm some sort of trailblazer or something, because now my way is the…

Word to the Wise's Laura Atkins, like me, often gets asked about words to avoid in subject lines. Is it OK to use the word "free" in a subject line? I read that cau…

Want to spam everybody who signed up for emails from Wisconsin governor Scott Walker during his failed presidential bid? That'll cost you $10,500 . Makes me wish I had signed…

Somebody asked me recently, what is phishing? Instead of re-inventing the wheel, allow me to link to a few of the resources already out there that explain what phishing is and wh…

Yahoo and Gmail both hit the news this past weekend, and not for great reasons. If you're an American Yahoo! Mail user and you want to email your congressman, good luck with …

Today's guest post comes from deliverability consultant extraordinaire, my friend Josie Garcia. Take it away, Josie! Did you know that senders are in control of many more rep…