Site Map

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August 2001
Ramblings about MAPS and the RBL

October 2001
Nick Renton

November 2001
Audit Trails and Relay Blocking Lists

January 2002
Buying dirty lists doesn't pay
Selling your e-mail address for fun and profit

January 2003
MonsterHut in the News

March 2003
Problems with Spamcop

May 2003
Double Opt-in/Confirmed Opt-in

January 2004
CAN-SPAM is here

February 2004
Bill Gates, spamkiller?

February 2006
Double Opt-in How-To

August 2006
I'm back!

September 2006
Double Opt-in How To
Europe hasn't caught up yet
A question about your practices.
Sender Policy Framework (SPF) trick of the day

October 2006
Ask Al: Help, my domain is being forged!
Co-Registration Woes
Google Code Search
Groklaw on the Spamhaus case
If it's good enough for the cops...?
Sending an attachment with your email campaign?
Spamhaus in the News
Who has your personal information?
Who's been sued under CAN-SPAM?

November 2006
Ask Al: Help, I'm being blocked as a spammer!
Ask Al: How do I track abusive spam?
Blast from the past: RFC Ignorant
How to deal with Challenge/Response?

December 2006
Blast from the past: John Gilmore's open relay
Opinions on Challenge/Response?

January 2007
Ask Al: Help, you're blocking my mail!
Full Text of CAN-SPAM
How to deliver mail to AOL
I Still Get More Spam Than You
Quick Update: Scott Richter Makes the News
Senders: How to avoid false positives
SPEWS Current Status
The Story of "Nadine"
Whatever happened to VRFY?

February 2007
The AOL email tax: Is the sky falling?
Backscatter: What is it? How do I stop it?
Blast from the past: Scott Richter on the Daily Show
CAN-SPAM Roundup
The Changing Definition of Spam
Dealing with spam to your abuse desk?
Joe Jared Wins
Microsoft using Spamcop and Spamhaus? Yes!
What are spamtraps?
What it does it mean “We do not relay?”

March 2007
e360 vs Spamhaus: Sparring in the Newsgroups
e360 vs Spamhaus Update
Flixster Wants Your Passwords
Gmail, End User Privacy, and Harassment
Surveys, Profile Information, and Hamtraps
Well-Known E-mailers Back Spamhaus in Amicus Brief

April 2007
Email Diva: Industry Standard For List-Cleaning
Get your Sender ID on!
Sweepstakes and List Building
There's always more spam!
Tracking lots of spam for fun and profit
The very first spam?

May 2007
ESPs, their clients, and ISP blocking
Mark Mumma News Roundup
Re-thinking Spamcop
Robert Soloway Arrested

June 2007
Even More on Confirmed Opt-in Best Practices
Greetings from San Jose
Harvesting BAD! Grr!
Know when to quit!
Opt-in vs. Relevancy
Spamming That New Account
Vonage did WHAT?

July 2007
Ask Al: My email address is being used in spam!
Blocklist notifications? Think again.
Blah on Challenge/Response
Blink: 32 new spams.
Blogger listed on Spamhaus blacklist
TQMCUBE Blocking List Status
Where was the consumer?

August 2007
7th Circuit Court Opinion on e360 v Spamhaus
Blowback sucks
Division of Permission
MAPS Blacklisted? It's True!
On the APEWS Blacklist
SPEWS Memorial Day?
The Virtumundo/Jim Gordon Affair

September 2007
Getting it Half Right
More on the Spamhaus Ruling
Oh, please.
Opt-in Censorship?
The Real Spam Has Stood Up
Spam, the Documentary
Zombie Pfizer Computers Spew Viagra Spam

October 2007
Address portability? Already got it!
David Ritz lawsuit
McAfee vs Barracuda
Psst...wanna buy a list?
Purchased Lists Are Still Lame

November 2007
Here is why people get blocked

December 2007
Best Practices & ISP Rules
Yahoo using Spamhaus lists

January 2008
Alan Ralsky indicted
David Ritz Story Gets Press
Domain Tasting to End?
Excellent comment(s) on the Ritz affair
Gmail's Taking Care of Me
Good to leave your Wifi open?
My Prediction For 2008
North Dakota Judge Gets it Wrong
What the heck is Notchup?

February 2008
Help David Ritz
More on the Obvious

March 2008
Are you sure it's broken?
e360 v. Comcast: EPIC FAIL
Forced Opt-in
Ken Magill Gets It!
Las Vegas Spam via China
More bites at the apple?

April 2008
Mourning the Loss of
On Blog Etiquette and Content Ownership
This One Goes To Eleven
Promoting Transparency
You Gotta Fight!

May 2008
Behold the Box of Meat
Do you want to fund the lawsuit?
The EEC/Zinio Affair
MAPS: Ancient History
Offers You Can't Refuse
Postini Bug and False Positives
The "Report Moron" Button
Sender Complaints about Spam Filtering
Thanks, James Gordon

June 2008
E360 Failure Update
When Terminology Attacks

July 2008
Backscatter in Detail
COI Can't Protect Against Stupid
Ken Magill on the Eddie Davidson Coverage

August 2008
Beware the Fake News Spam
Don't Spam to Apologize for Spam
Godaddy misusing the PBL?
List Reconfirmation Example
More on Pizza Hut
On Political Speech, DOI, and Mr. Poopyhead
Ow, my Irony hurts!
Political Sending Reputation
ReturnPath Buys Habeas
What is a Sender?
Yahoo Insights and Subcriber Engagement

September 2008
Friday Funny: Give Her Big Meat
Ken Magill Defends Blacklists
Virginia Spam Law Overturned: Doesn’t Matter

October 2008
Ask Al: Help! Am I blocklisted?
Authorities Shut Down Spam Ring
Backscatter Goes Mainstream
Blocking list BCP and Dead DNSBLs
Message Timing FAIL
Spam from Randolph Wine Cellars
Spammers: SambaMail and The Data Supplier
Tell me about this new opt-out list!

November 2008
Gmail Tempfailing
Ken Magill, Laura Atkins on Zoominfo
Spam from Postini Servers

December 2008
EmailAppenders Has a Question
Michigan State to student: Political e-mail is spam

January 2009
Abuse Mailbox on Google Apps?
AT&T's 'American Idol' Text Message Stunt Backfires
Email Append and New Domain Spam
Neat Hack: Re-Assassinate
No more, Direct Magazine

March 2009
E360 Gets an Important Bit Wrong
JC Penney Does WHAT?
SCOTUS Declines Review of VA Anti-Spam Law Case

April 2009
Barnes and Noble Emails Opt-Outs
Speaking of Business Contact Databases

May 2009
Help! I'm spam blocked by DCC!
Help! My address was forged in spam!

June 2009
Ask Al: Blacklisted IP Address?
Ask Al: Getting my Controversial Email Delivered
Ask Al: Help prevent a bad thing!
Check Your CAN-SPAM Checklist
SORBS Information Roundup

July 2009
Ask Al: Blocklisted by Spambag?
Ask Al: Checking email addresses against URIBLs?
Postini: Google's take on e-mail security Gets Ass Handed To It By Court

August 2009
And the Most Popular Email Service Is...
Blocking specific domains?
Do you use SpamAssassin?
Guest Post: Email and the White House
More on Email Forwarding (and
Neat Trick: Forwarding Webmail into Work Email
Permission Marketing: A Loaded Term?
AOL to Stop Sending Report Cards
White House Spam, Signup Forgery, and GovDelivery
Wholesale e-mail data? Uh, no.
Yahoo handles email for Verizon?

September 2009
Ask Al: Help! I'm Blacklisted!
Ask Al: Trouble Sending From My Own Domain?
Breaking: Goodmail Sued for Patent Infringement
Domain Reputation and Recipient Engagement
Don't Lie About Safe Harbor
Don't Share Needles!
Good Advice for Senders
Google Voice and Phone "Spam"
Happy Birthday, Internet!
How Google Looks at Spam Complaints
Internet Miracle Cures For Everything!
Jigsaw Blacklisted by Spamhaus
Make it stop!
New FBL from Tucows/OpenSRS
New Maine Law Came...and Went
Online Privacy in the UK
Pivotal Veracity on Domain Reputation and ISP Insights
Quick Hit: Blagojevich Spam
Rocky Mountain Bank WTF
Spam Resource, New and Improved
Symantec Says Illinois is #5
You Can't Buy an Existing Business Relationship

October 2009
Another Day, Another 419 Scam
Ask Al: Bad things happening?
Ask Al: The Strange Case Of The Help Request Gone Awry
Auth Don't Fix That!
Barry Don't Play That
C-27 Canada's Electronic Commerce Protection Act passes Committee Review
I Support Opt-In Legislation for Canada
Judge rejects TD Ameritrade breach settlement
Let Us Count Up The Fail
A message from me...but not!
Spamhaus, Snoeshow spam, and You
Staying Safe Online
Too Much Contact
Top Five Tips for Dealing with Blacklists (Updated for 2024)
A Twitter Conversation About List Rental
Why do we need an opt-in spam law?
Zombie Blacklists: Life Goes On

November 2009
Ask Al: Delivering a Monthly Newsletter to 350 People?
Ask Al: What are filters checking?
Breaking News: Spambag is Still Dead
"Herbal King" Ringleader Fined $15 Million
Is email dead?
Karmasphere Reputation Services Shutting Down
The Legitimate Email Marketer Isn't
Loren McDonald on FISUE Syndrome
Ralsky Gets 51 Months in Prison
Two New Zealand Spammers Fined

December 2009
CAN-SPAM Plaintiff Spanking Appeal Rejected
The Case of the 500-mile Email
Did you catch that?
Fire up the ROFLCopter!
"Herbal King" Spanking Continues
Is an Unsubscribe Link Required?
More Anti-Spamhaus Fun
Not How It Works
On List Growth and Buying Lists
Permission, Co-Reg Sucks, and ESPs
Receiving Duplicate List Messages?
Top Five Spam Resource Posts in 2009
Wahhh, "Just Hit Delete"

January 2010
Bad News in 2010, if You Suck
The Beatings Will Continue...Forever
Brazil Overtakes US as Spam Leader
The E360 Pantsing Continues
Email to Die in 2010
How Tradeshow Email Lists Can Get You Blacklisted
In-Application Email Signup: Ew, Really?
Ken Magill Leaves Penton
Pivotal Veracity Acquired by Unica Corp.
Spam Complainants Are Sometimes Angry
SpamAssassin 2010 bug
What is
Who is this Ken Magill guy anyway?
Work-at-Home Spam, Scam or both?

February 2010
Ask Al: Additional Received Headers?
Bad Advice in the B2B Space
ClickZ: Goodmail CEO Steps Down
Don't Spam the Judge
More on Netprospex
Surprise! Internet filled with Junk Wins Spam Lawsuit
WHOIS Privacy Protect -- What Spamfighters Think
Word to the Wise Delivery Wiki

March 2010
Alan Ralsky Goes to Jail, Does Not Pass Go
Arrests made in "Mariposa" botnet that infected 13 million PCs Settles Lawsuit over Deceptive Emails
Identify anonymous domains with
Is Online Anonymity a Bad Thing?
ISPs: Preventing Outbound Spam?
A Note on Dutch "Tell-A-Friend" Regulation
On Defending Jigsaw & Similar...
Quick Hits
Spamhaus: Waledac Botnet Culling Had Little Effect
Twitter Has Spammers, Too
Virgin Mobile Settles Spam Allegations for 22,000 AUD

April 2010
Alleged Spammers Using Google Apps: Bad Idea
Beware: Free Gift Card Ads
CAN-SPAM Compliance Impacts Deliverability?
CAN-SPAM Myth #1: Applies Only to Spam
Do you track your opt-in data?
Harvard Business Review Is DEAD Wrong About Opt-Out
The Pernicious Effect of Gordon vs. Virtumundo
Recent Spam Litigation Activity in California Courts
Speaking of

May 2010
Bad idea: Sending from the Cloud
CAN-SPAM Myth #2: This Law Makes it OK to Spam
CAN-SPAM Myth #3: Password Protecting the Unsub Page is OK
CAN-SPAM Myth #4: Doesn't Apply to Non-Profits
Groan: .co TLD to be opened to the public
How Not to Respond to Public Spam Allegations
If It’s Not Permission-Based Email Marketing, It’s Just Not Worth it
In Memoriam: Stefan Pollard
Recommended Reading: Fatal System Error

June 2010
Does CAN-SPAM Cover Affiliate Spam?
How to avoid getting swindled on your email lists
Let's Talk About the Rules
NY AG Taking Legal Action Against
Spamhaus Case: e360 Award Slashed to $27k
Twitter Blacklisted by Spamhaus
The view from a blacklist operator
Who's Sharing Your Personal Info?

July 2010
Does the First Amendment forbid spam filtering?
First Amendment Restrictions on DNSBLs
Google: Bulletproof Hosting Provider
Is it OK to block political speech?

August 2010 Content Thieves How not to handle a spam complaint
Stupid Search-Trick Watch: Content Thieves Strike!

September 2010
ARF: Now a Proposed Standard
HR2221: Data Accountability and Trust Act
Magill-Meat Love Fest
Rich Kulawiec Booted from SPAM-L
What is Hashbusting?
WHOIS Wasn't Hacked

October 2010
Ask Al:
Changes to
Godaddy blocklisted by AHBL
Magill Has Questions
Payday Loan Marketer Settles with FTC
Rendering & CAN-SPAM Compliance
The Rise and Fall of a Spam Plaintiff
Selling Customer Data: Good idea?
Top 4 CAN-SPAM Myths

November 2010
Holomaxx Link Roundup
Holomaxx suing Microsoft, Others
More Spam from Newegg?
Netprospex: "Verified" really?
Please Help us Kill Zombies!
Size isn’t the only metric
The Truth about Permission
What is bulletproof hosting?
What You Suggest Will Kill Email for Everyone

December 2010
All About List Growth
Ask Al: How do I grow my list?
Backscatter from Microsoft Exchange
Canada Passes Anti-Spam Legislation
Gov't Needs Warrant to Search Email
Have you checked out NiX Spam?
HolomaXx Dismisses Suits against Return Path, Cisco IronPort
How To (or How Not To) Operate a Blacklist
Mark Brownlow on Permission
More on Growing Your List
Quick Note: AOL Inbound Email Issues
Spamhaus under DDOS from AnonOps (
Spouse Can't Hack Your Email, says Michigan
Venkat Balasubramani: Portrait of a Lawyer Turned Anti-Spammer
Wikileaks Mirror Malware Warning

January 2011
An Informal Definition of Spam
Dennis Dayman: Watch out for DeepWWW
Guest Post: Huey Callison: Reader Feedback Week
How to Generate Leads with LinkedIn
LinkedIn: A list-building opportunity?
Microsoft, Holomaxx, ISPs Reading Your Email
Top 5 Spam Resource Posts in 2010

February 2011
Cloudmark developing SMS spam filter
Goodmail to Shut Down
How to Start a Spam trap
Is there a war on small mail servers?
Making Permission Assumptions
Thought of the Day: Permission
Who/what is RESMAIL?

March 2011
China cleans up spam problem
Comcast’s Impressive System for Notifying Infected Users
No false-starts, do-overs, or mulligans for Email
On the Legality of Spam Filtering
Score one for the Good Guys
Spamhaus and URL Shortening Services
What changed?
Why are you in my inbox?

April 2011
Is this permission?
Spamcop Blacklisting: Should you care?

May 2011
AOL blocked? Don't try this at home.
DNSBL Safety Report 5/14/2011

June 2011
Is DKIM evil?

July 2011
What's your (telephone) reputation?

August 2011
MAPS/Trend Micro Spamtrap Issues?
No surprise: Holomaxx loss.
Push Clickers Across the Conversion Finish Line

September 2011
Another Experience with Email Append
Email Append: Not a Great Practice

October 2011
Dutch ISP Picks Fight with Spamhaus

November 2011
The Passing of J.D. Falk
What does Spamhaus think of email append?

December 2011
2011: The Year in Spam
Ask Al: Help, I'm blocked at AT&T!
Netprospex Blacklisted By Spamhaus

January 2012
CheetahMail "Gives Up" Email Append
A Heck of an Oops
Where did DMARC come from?

February 2012
It's not all spam, is it?
A wizard did it.

March 2012
Does Hotmail use the SBL (Spamhaus Block List)?
Inside Gmail: A Whole Lotta Nothing?
Send Less Mail, Make More Money
Whitelisting – A partial solution to Inbox Woes?
Why did Gmail junk that message?
You Get the Deliverability You Deserve

April 2012
A flippant, but true, response.
CASL Slips to 2013
SMS Spam: Google Voice is Helpful
Spam Complaints Matter

May 2012
Neutraceutical Spammer Sentenced to 2 Years
Defining Permission
Engagement – Buzzword, or a rule to live by?
How Subscriber Complaints Affect Inbox Placement
MAAWG: Internet Police?
Read the Comments
What does your email address say about you?

July 2012
Guest Post: Canada's New Anti-Spam Bill - Is Anyone Listening?
The Transactional Unsub

August 2012
COPPA in the news
No Permission = Bad Experience

September 2012
Email Append Gone Wrong
More Misdirected Messages
RFC Ignorant Blacklist Shutting Down

October 2012
CRTC Issues Updated Canadian Spam Law Guidelines

November 2012
Ask Al: What of the MAPS RBL?
Email is Not Anonymous

December 2012
Friends in high places?

January 2013
A bit of spam history
On the Recent Yahoo! Mail Exploit

February 2013
Another Dead DNSBL
On Spamhaus and Anonymity

March 2013
Crazy on Display
Spamhaus DDoS in the News
That Wasn’t Funny

April 2013
COI: Another List Manager's View (or two)
Does COI make sense?
Dutchman Arrested in Spamhaus DDoS
Payday Loans in the News Transitioning to Yahoo! Mail backend
Tons of Misdirected Mail
Two-step auth coming to Microsoft?
Worst Write-up?

May 2013
Apple Rolls out Two-Factor Authentication
Twitter Rolls Out Two-Factor Authentication

June 2013
CAN-SPAM Ruling: Domain Ownership Masking Deceptive
DMARC: Please Be Careful!

September 2013
Gmail Tabs Roundup
Ken Magill on Gmail Tabs
LinkedIn Sued by Users
Mail merge?
SpamArrest Loses in Court

November 2013
Ask Al: Remove me from APEWS?
Checking the SBL "Latest Listings" Page
Dynamic Dolphin Dies
Looking at a spam stream: The story of Jimmy Walker
Payday Loan Stories on NPR

December 2013
Ask Al: Help! My email address is being used in spam! What do I do?
Rest in Peace, Nadine
The Return of the Open Relay

January 2014
Gmail Oops
Gmail: Reach the people you know more easily

February 2014
SpamAssassin 3.4.0 Released

April 2014
AOL Adopts New DMARC Policy
Ask Al: Is my personal domain affected by DMARC?
Google Groups rewriting from addresses to handle DMARC policy
How used the Yahoo! DMARC crisis to make a better Mailing List Manager
How popular is Yahoo Mail?
Masking WHOIS Information: No for you
Payday Loans: Not Even Necessary
Run an email discussion list? Here's how to deal with DMARC
Up in arms about Yahoo's DMARC Policy? You are not alone.
Who uses a Yahoo from address?
Yahoo DMARC Policy Change Roundup
Yahoo DMARC Policy: Why they did it.
Yahoo Statement on new DMARC policy

May 2014
Gmail’s message to email marketers: Focus on engagement
Signing outbound list mail with OpenDKIM
The Current State of TLS over SMTP?
Yahoo Groups rewriting from addresses to handle DMARC policy
Yahoo on Yahoo's new DMARC Policy

June 2014
106 miles to Chicago
Blast from the past: Challenge/Response Filtering?
Check out this neat thing: Email Privacy Tester
DMARC does only one thing (but pretty well)
OpenDKIM & SpamAssassin Gotchas on Ubuntu 12.04

July 2014
Ask Al: Should I add a DMARC record to fix the Yahoo issue?
Does Gmail use Spamhaus blacklists?
Pre-order Spam Nation by Brian Krebs
Purchased lists? DOA.

September 2014
Interesting SBLs is back

October 2014
Is a wireless domain?

November 2014
Third party post-purchase research emails: spam?

January 2015
Amazon Starting Email Service
Ask Al: Help! AHBL is blocking inbound mail!
Microsoft Updates Use of List Unsubscribe Header
Yahoo Shuts Down Its Email Service In China

February 2015
DMARC and Mailing Lists: A Roundup
House Introduces Email Privacy Bill
Spamhaus Sued for Libel in UK

March 2015
Great work, MAAWG!

April 2015
Domains and have been retired
Sending mail over IPv6? Authenticate!

May 2015
DeliverNow: New Filters @ Orange, SFR, Laposte
ESPs and Purchased Lists

June 2015
DMARC and mailing lists: We survived!
Domain Registration Privacy: Another View
Return Path: When is it OK to Use a Shared IP Address?

July 2015
1,072,835 Page views!
Oops: Gmail Spam Filter Changes Bite Linus Torvalds

August 2015
HostWinds: A Turnaround Story

September 2015
Another day, another dead blacklist....
Google now allows you to "block" senders in Gmail
⛄ Put a snowman in your subject line ⛄

October 2015
Add Other Email Accounts to Yahoo Mail
Additional Yahoo Domains to get DMARC "Reject" Policy
DMARC: Gmail "p=reject" policy is coming

November 2015
From address: Don't use an invalid domain name
Gmail to flag unencrypted email connections
Is my DKIM key Insecure?
Use this ONE WEIRD TRICK when implementing a DMARC record
Using AdBlock? Using Yahoo! Mail?
Verizon Retiring Inactive Email Addresses

December 2015
2015: The Year of DMARC?
Congrats to Return Path!
French ISP Orange shutting down mail domain
Mail forwarding in a DMARC world
Use the SECOND WEIRD TRICK when implementing your DMARC record
What RRVS Doesn't Fix
Yahoo! Mail China is no more

January 2016
10 Simple List-Building Tips
Does anyone at AT&T netops read Spam Resource?
Feedback Loop (FBL) Resources from M3AAWG
Making it Easy to Unsubscribe (#1)
Making it Easy to Unsubscribe (#2)

February 2016
Contest Signups for Lead Generation: The Good and the Bad
How to track ISP delays
International Yahoo Domains to get DMARC "Reject" Policy
Let's Talk About Leadgen and Payday Loans to Adopt p=reject DMARC Policy Got a Big Update Today
Prune Inactive Subscribers: Y/N?
What happened to McAfee and Postini?

March 2016
Don’t Be Afraid to Say Buh-Bye
Email inventor Ray Tomlinson dies
Here's why I unsubscribed
How to Optimize Your SPF Record announces additional DMARC domain restrictions
Sender ID Doesn't Matter in 2016
Small scale, unsolicited, and sustainable...
Spamhaus Releases "Worst TLDs" List
SPF Still Matters in 2016
The spam map of the United States

April 2016
B2B Spam is Dumb and You're Dumb and This Other Guy is Dumb, too
Google Postmaster Tools: Not receiving data?
I'm blocking all mail from .top
Researchers help shut down spam botnet that enslaved 4,000 Linux machines
Spamhaus to indicate DROP status via DNS

May 2016
Cisco PIX/ASA: Disable SMTP Fixup
Google Postmaster Tools: Domain vs. IP address Data Thresholds
Protect Your Brand and Reputation
Scott Walker's got a list for you moving to AOL
What is phishing?
Yahoo, Gmail and Spam in the news

June 2016
Apple iOS 10 to support List Unsubscribe
Can't send to Dad, sorry.
FBI Raids Spammer Outed by KrebsOnSecurity
Internet, Web Enjoy One Final Day As Proper Nouns
LinkedIn for list building: Still bad news
Putting the "free" myth to bed
Sanford Wallace gets jail time for FB scam

July 2016
Spamcop: Declines to send reports to ESPs
Steve's Co-Reg Inbox Saga
What is SPF lockdown?
Wired on Email Reputation
Yahoo, AOL to both be owned by Verizon

August 2016
Dead email domain:
Do you need COI/DOI? Probably.
Gmail now requiring SPF or DKIM
Where do I get a new IP address?
Yahoo: Deferring Inbound Connections Today

September 2016
7 Common Deliverability Myths Busted
AOL announces Alto, new mobile email app
Bye bye, SmartScreen
Deliverability Problems: What You Can't Fix
DMARC Support in Mailman
Doing the Math on Purchased Lists
Gmail providing easy-to-read Auth Results
Gmail to Support Responsive Design + More
Not receiving Yahoo FBL Confirmations? What to do
Subscription Mailbombing: Must Read

October 2016
Best practices for parked domains
Beware: Student loan forgiveness spam
Checking an SPF record with the Kitterman SPF Validator
Now you can read your email on Xbox One
Obama Administration Says Text-Spam Law Is Constitutional
Yahoo! Mail: No Forwarding for you

November 2016
Barracuda (was) down
Email and the 2016 Presidential Election
Gmail Updated on iOS
Holiday Season Tip: Don't Experiment
Putting Spam to the culinary test
Virgin Media is so rustic and artisan you get to hand-sort your own spam

December 2016
5 Reasons List-Unsubscribe Concerns Are Overblown
Ask Al: What of Senderbase?
List-unsubscribe on Gmail: Frequently Asked Questions (FAQ)
Microsoft breaks DKIM signature?
Yuck: iCloud Calendar Spam

January 2017
The Scunthorpe Problem
What is UCENET?

February 2017
Guest Post: Chris Truitt: A Guide to Microsoft SNDS
Sean Spicer and WHOIS
What can SNDS tell you?

March 2017
AOL User Mike Pence
Do you care about WHOIS?
IBM Patents Out-of-Office Reply functionality
New IP ranges
Password Reset Emails: Best Practices
Verizon Users: Leave, or move to AOL

April 2017
Orange UK Email Closure
Senders: What should you do about

May 2017
New Anti-Phishing Protection in Gmail on Android
Text to Image ratios in email
Verizon Email Transition Update
Why list-unsub doesn't let you "opt-down"?

July 2017
AOL: Reputation corrected and request denied
Most federal departments aren’t using DMARC: Wyden

August 2017
16 Years And Counting
DMARC will (not fully) fix it!
Finding DMARC when it isn't there?
Haiku Break

September 2017
Hotmail UK MX Change
HTML Email: JWZ's fault?
Whoops: iOS 11 Mail Microsoft Issues

October 2017
Holiday Season is Here: What to do
October 11: Spam in the News

November 2017
Vodafone (New Zealand) Email Closure

December 2017
Did anyone recently notice that the Spamhaus XBL just got really big?
Inbox by Gmail will remind you to unsubscribe from unread promo emails
Help! I'm blocked at! (Updated for 2024)
Hotmail: Twenty years ago this month...
Krebs: Phishers Are Upping Their Game. So Should You.
LaPoste Now Offering DKIM-based ISP Feedback Loop
On the 12th day of Listmas...
The 12 Days of Listmas
Top Five Spam Resource Posts of 2017

January 2018
AOL Announces Mail System MX Changes
Canada and Japan joining forces to stop spam
Challenges in 2018?
Dead email domain:
History Repeating: Challenge/Response again?!
Isleton Spam Festival: There's still time
More on "Smart Unsubscribing"
More Transitions: AOL/Yahoo Consolidation
TinyLetter: Don't freak out just yet!
Using ClamAV? Update Now
You use 2FA for your Google account, right?

February 2018
AOL/Yahoo Transition Update: AOL DMARC & FBL Reports
Ask Al: Group mail is being blocked, what do I do?
Best US cell carrier for phone spam protection? T-Mobile.
Gmail & B2B Spam
Gmail: Filtering mail into folders
How Email Works
List-Unsubscribe header: You need it!

March 2018
250ok on DMARC adoption among top US colleges
DMARC: sp= policy not always needed
File under obvious? Engagement rules!
Fun fact: Gmail has two domains
Howto: Disable your Gmail spam folder
PSA: Time to update your ReCAPTCHA

April 2018
40 Years of Spam
Cloudflare Launches DNS Service
Lycos Mail: Free accounts to be eliminated
Reference: Apple email domains
This weekend: Gmail spam, from me, to me

May 2018
AOL: No More Whitelisting
Smells like GDPR Season
Spam Cannibal blocking list is dead
Spam recall: For real! to close to EU users
Vodafone Ireland: is a dead email domain
Whoops! Cyberlogic DNSBL Broken

June 2018
A spam score of 33.8!
Gmail's Promotional tab: How to escape
Locking down your unused domains
Revisiting Spam, the Documentary
The big red warning box of doom
The email problem no one is talking about: mistaken identity is 11 years old today

July 2018
Apple Moves to "Quarantine" DMARC Policy
Dead email domain:
Happy birthday, spam (the good kind)!
Return Path launches Universal FBL
The 250ok Deliverability Guide
The secret to disconnecting? Email does it better.

August 2018
Google moves to "quarantine" DMARC policy (for subdomains)
It's time to re-engage!
Let's track!
List Bombing: History and Prevention
Scunthorpe Redux
Thank you for signing me up!

September 2018
Howto: Create a Gravatar brand icon
Howto: Make your brand icon display in Gmail
Inbox by Gmail: Bye bye
Spam in a post-GDPR world?

October 2018
How to Recover from Email Marketing Mistakes
Sender ID? No, don't bother.
The future of email?

November 2018
4 Holiday Deliverability Tips
Report: ‘Trump’ most common spam term during run-up to elections

December 2018
How to win friends and influence people?

January 2019
Characters in the local part of an email address
Stop using NJABL! Now!

February 2019
2018: Did I get it right?
DMARC Policies Up 250% In 2018
Fun while it lasted...
Gmail: Improving spam filtering with TensorFlow
Gmail SPF Status of Best Guess: What does it mean?
GPT Downtime

March 2019
AMP: The next big thing?
Hello, Verizon Media Postmaster!
How Do I Avoid the Spam Filter?
How to Make Sure Important Emails Stay Out of Your Spam Folder
The latest trend at D.C. restaurants? Spam. And it’s delicious.

April 2019
AOL & Yahoo Mailbox Merger: It’s Done!
When Gmail Was First Announced, People Thought It Was an April Fools' Joke

May 2019
Google Postmaster Tools doesn’t like us. How can I fix it?
Mailkit's BIMI Inspector Tool

July 2019
BIMI Moves Forward as Google Commits to Pilot Program

August 2019
ARS Technica: How to read email headers

September 2019
BIMI: Current Status? Should we bother?
Blacklists and multi-client impact: The risk is real
HOWTO: Work around Office 365 Unblocking Issues
Is email spam a solved problem?
Let's go buy a list!
SPF and DKIM Alignment: What are they and why do they matter?
What about AOL?

October 2019
Another day, another dead DNSBL
Best Practices on Domain Name Choices
Charter/Roadrunner bounces?
Dead email domain:
How Email Spam Filters Work Based On Algorithms
How not to get people to open your emails
Need example SMTP bounces for different ISPs?
New XNND (Wombatmail) DNS Tool Update!
Sender ID is back!! No, wait...
Spamhaus Blocklist Changes

November 2019
Best Practices on Domain Name Choices: What TLD should I use?
Can I use FOIA to source lists?
Egypt’s economic court fines insecticide company for SMS spam
Google: No favors at Gmail
SPAM Alert!
Yahoo Groups is changing

December 2019
How the military made Spam an iconic American brand
ISP Deliverability Guide: Microsoft OLC
ISP Deliverability Guide: Yahoo/AOL (Updated for 2022)

January 2020
2020: What's next?
Apache SpamAssassin 3.4.4 now available
Europe is different and why this matters for US-based companies
Following best practices for sending to Gmail
Got placed in the Gmail promo tab? You're not alone.
Is 2020 the year of BIMI?
Mashable's wrong (sort of) -- empty your inbox!

February 2020
Automatically Resend Emails to Non-Openers With Pardot DMARC Policies Increase 300% over 2019
Fun with Double Opt-in
Validity to Acquire 250ok
Verizon (Yahoo) announces new Email Deliverability and Performance Feeds
Why Email Engagement Is the Holy Grail of Email Deliverability
You should check out: Really Good Emails

March 2020
A few COVID-19 subject lines
Amazon Web Services (AWS) now blocking block port 25
April Fools Day is Cancelled
Call for Deliverability Monitoring Vendors: Postmastery
Everything marketers need to know about BIMI: The latest email standard
ISPs do filter political mail
Other Deliverability Monitoring Vendors?
Reference: All Virgin Media (UK) domains
Reference:, GMX and Domains
Spam and reputation

April 2020
Ask Al: Help! How best to send to 70 friends at once?
Beware of questionable and/or bad guys trying to take advantage of you in a rough time
Blocking emails to role accounts: Best practice?
Bounteous explains AMP for Email
Call for Deliverability Monitoring Vendors: ZeroBounce
Google: Protecting businesses against cyber threats during COVID-19 and beyond has tabs now, too?
Why coronavirus scammers can send fake emails from real domains

May 2020
Dead DNSBLs: and
Dead domains:,,, and
Finally! A font-based solution to the Scunthorpe problem
How to Send a Text Message Via Email
Tony Webster: Investigating using domain & SSL info
ISP Deliverability Guide: Apple's iCloud Mail
Yikes! Cyber-Criminals Increasingly Using CAPTCHA Walls in Phishing Attacks
Your periodic reminder: Please register with

June 2020
Best Practices for Email Deliverability During COVID-19
HEY: My first impressions
New email vendor? Expect your deliverability to plummet… at first
Reporting Spam to Apple from your iCloud Mail account
Reporting spam with Outlook on iOS
What is the Vade Threat List? How do I request removal?
Blocked at
You WANT spam folder delivery?

July 2020
BYE: My first impressions
Call for Deliverability Monitoring Vendors: Glockapps
Gmail Spam Attack on June 30th
GMX and to offer Deutsche Post Informed Delivery-style Service
Google announces BIMI Support for Gmail
Is that ISP down?
ESP Abuse/Spam Contact List
Re-visiting mail forwarding in a DMARC world
Small Mailserver Best Current Practices
The Drip: Automatically Remove Spam Leads From Pardot
Top 10 Email Security Blogs...from 2010

August 2020
Email Deliverability Unfiltered: Gmail Tabs
Gmail spam filters don't know what party you represent
Help! I'm blocked at Microsoft! What do I do?
How often should you rotate your DKIM key?
Howto: Forward email automatically
Need simple DNSBL/blocking list tracking?
Quick Tip: Core Subscribers
Validity launches Everest, their new "email success platform"

September 2020
AMP: The next big thing? Not at
DMA Email Council: How to Use Registration Forms to Get Marketing Opt-In
Do you even Swaks, bro?
Edison Software unveils OnMail email service
Let's send mail...through Gmail!
Mixed Content and Mixed Messages
Robservations: Tribune Publishing apologizes for phony phishing expedition
The Ultimate SPAM Cookbook
What is IP warming?

October 2020
Lexology: Vietnam’s New Decree 91 Sets Out Stricter Anti-Spam Regulations
Scams and spam: USPTO users face epidemic of spurious communications
Spam calls are hindering efforts to contact trace and track Covid-19
What are spamtraps? (Updated for 2020)

November 2020
AMP for Email: Current Status
Atlanta is number one!
Body Found in Canada Identified as Neo-Nazi Spam King
Honestly? Don't send to Gmail over IPv6
New settings for smart features and personalization in Gmail
Preventing Deliverability Holiday Issues
Swaks: New version available
Vodafone Germany: Domains and Infrastructure Changes

December 2020
Mailauth: Check SPF, DKIM, DMARC, ARC, BIMI and MTA-STS
Millions of inappropriate and racist spam emails sent to Seminole County middle school, high school students
Top Five Spam Resource Posts of 2020
Gmail bounce issues on 12/14-12/15
Validity: How to Please Gmail
Validity Universal Feedback Loop Service adds 2 new ISPs

January 2021
DMARC, BIMI, B2B, Mobile & More in 2021...
How to find ISP Contact Information
Lashback UBL blocklist: OFFLINE
Terms of Service: From anti-spam to content takedown
Threatening email sent to 5,000 parents, students through Massachusetts school's account
Vegan spam is a thing that exists now

February 2021
Friday funny: It IS spam, but...
Help! I got spammed! What should I do?
How to Back Up Your Most Important Emails...?
Open Tracking is evil and you should be ashamed
Proofpoint: Facebook, stop taking our domains away!
Slovak Telekom email service has shut down
SMTP Field Manual: Updated!
Spamcop glitch over the weekend; since fixed
Spamhaus warns: Watch for new (error) response codes
Why some people get more phishing emails and malware spam

March 2021
Let's report some spam!
Spamhaus updates lookup tool

April 2021
Abusix: 8 ways on how ESPs and DNSBL providers can collaborate better
Ask Al: What if domains don't match?
BIMI testing and BIMI adoption tracking
ISP Deliverability Guide:
Cómo complacer a Gmail, en Español
Fastmail now supports BIMI
Seeing "recipient getting too much mail" delays at Gmail?
Verizon (Yahoo) launches new sender-focused portal
What identifies an email message?

May 2021
Changes to the Spam Act in Australia
Email security vendor Agari acquired by HelpSystems
Google will automatically enroll users in two-factor authentication soon
Pardot Email Unsubscribes Report: Understand Which Caused Email Opt-outs
Requesting pre-emptive accommodation from Microsoft
Verizon sells AOL and Yahoo

June 2021
Apple WWDC Announcement: Privacy and Pixel Tracking
Pathwire Announces Acquisition of Email Optimization Platform Email on Acid
SNDS shows no data from June 17th - June 21st
UK ICO fines credit card company for marketing content in service emails

July 2021
Beware the link shorteners -- or at least, be aware of the risks
Dead email domain:
DuckDuckGo launches new tracker-blocking email domain
Gmail announces general support for BIMI
When is a deliverability issue not a deliverability issue?

August 2021
BIMI: ISP Support as of August 2021
BIMI: Let's learn more about VMCs
Dead email domain:
Getting false positive DNS errors when sending to ATT/SBC?
Guest post from Red Sift: Implementing BIMI with Red Sift and Entrust
How to use custom email domains with iCloud+
Mailhog: A neat fake SMTP server
mb2md: A very useful linux/unix email utility
Microsoft SNDS: Common errors and how to handle them
Reference: All AT&T Email Domains
Spam Resource launched 20 years ago today
Validity and Spamhaus Launch Partnership to Educate Email Marketers and Enable Safer Outreach
Why does Microsoft hate you?
Wombatmail COI/DOI update: Now with reCAPTCHA!
ZoneMTA: Open source, large volume sending MTA

September 2021
Ask Al: Help! I'm getting bounces for mail I didn't send
Call for Deliverability Monitoring Vendors: MailMonitor
Intuit confirms $12B deal to buy Mailchimp
Quick and Easy Email Attachments in Linux
Reference: MAGY (Microsoft, AOL, Gmail, Yahoo) Email Domains
Tis the season to be prepared
UPC/Vodafone Dead Domains in Hungary
Yahoo is Yahoo again!

October 2021
1Password gets its own ‘hide my email’ feature
A DMARC Dictionary from dmarcian (and more!)
Apple iOS 15 Mail Privacy Protection Changes: A roundup
Be careful: Using Spamhaus with open resolvers is bad news
CheetahMail merges with CM Group
Cloudflare plans to eat Proofpoint's lunch? has new sending IP addresses
DNS problems causing email delays to
Fastmail dealing with DDOS attack
Google Postmaster Tools and DMARC reporting offline
Google Postmaster Tools (GPT) is back
iPost: 5 Ways to Improve Email Deliverability
OK, you've been unblocked. Now what?
Sinch acquires Pathwire for $1.9B
Spam Resource is going weekly
Spamhaus: When doorbells go rogue!
Taking holiday prep to the next level: 2021 edition
THE DRIP: How to Build a Winback Campaign with Pardot
Vegan spam? Again? I can't even.
What is an EML file?
Where did Facebook go yesterday?

November 2021
3 Ways Pardot Protects Your Email Reports from Non-human Activity
Cornbread Dressing with Spam and Sun-Dried Tomatoes
Crooks Commandeer Sam's Club Name to Send Scam Emails
Dead domains: and @*
Dead domains: and
DO U DMARC? Why you should (and FAQ)
Happy holidays, long weekend or not...
HOWTO: Create a BIMI logo file
HOWTO: Query Spamhaus Safely
More on OpenDKIM and Postfix, from EasyDMARC
New at
New ISP Feedback Loop:
OpenDKIM and Postfix: Signing DKIM for multiple domains
Spamhaus: Fake FBI warnings from real FBI servers
Tired of spam? A burner email account could be the answer.
What Does iOS 15 Mean for Email Deliverability during the 2021 Busy Season?
Zimbra Anti-Spam Best Practices in 2021

December 2021
Ask Al: How do I build up my restaurant list?
Ask Al: SPF -all or ~all?
Bad domain/sub-domain choices and unofficial TLDs
Beware the Email Bomb
Forged FBI spam and Formmail Exploits
Kickbox: Can I Share My Sending Domain?
Reference: Comcast Email Domains
Spam sales hit record high for seventh straight year in 2021
Tucows / OpenSRS Infrastructure Changes
You might already be a winner! Check your spam folder

January 2022
BIMI: ISP Support as of January 2022
Buckeye Broadband Email System is Down
Deliverability in 2022: We're here! Now what?
Did you know? Telegrams are still a thing...
Fax Machine Holdouts Find Spam Still Arrives in Hard-Copy Form
Gmail's Sender Contact Form: What and why?
Google Postmaster Tools (GPT) was offline; is back
Let's talk List-Unsubscribe!
New info in Microsoft SNDS
ProtonMail's Enhanced Tracking Protection: A new privacy protection hybrid
Querying Spamhaus via Cloudflare DNS? Read this
The definitive guide to IP warming
Top Five Spam Resource Posts of 2021
What is Gmail clipping and what to do about it
Why noreply@ is nogood@ in 2022
You should check out: Email Resources

February 2022
ACMA fines Sportsbet $2.5 million AUD over spam
Did you know? Amazon SES has a suppression list Thousands of BIMI Records Published During 2021
Email Message Header & Message Checking Tools (2022 Update)
From Oracle: BIMI: Benefits and Howto
Here's an odd SpamAssassin problem
How to create an email alert for SSH logins
How to make shockingly delicious burnt ends out of SPAM
IP Strategy from Jennifer Nespola Lantz: Dedicated or shared?
Let's talk all about Unsubscribes!
Let's track Apple MPP opens
Pardot Geeks: Email Deliverability Best Practices in Pardot
SFMC Geeks: Unsubscribe Throwaway emails after one bounce
SPAM: How the American Dream Got Canned
What Apple didn't break
What of the history of deliverability?
Yahoo: One Site to Rule It All
You might already be a winner! Check your spam folder (again)

March 2022
Ask Al: Automating IP warming?
Ask Al: Help! My email address is being used in spam! What do I do? (Updated for 2022)
DMARC at the subdomain level: When and why?
Do I have to label my marketing mail as an advertisement?
Does Germany require COI/DOI? (Updated for 2022)
Join me! CSA webinar w/Marcel Becker and Al Iverson, April 4
Meet the Texas man who has made $75,000 suing telemarketers
Sign up for my dumb email newsletter, or don't
Spam and melty cheddar sandwiches fit for a party
Ukraine to Russia: "Ya vam ne vrag" spam
Validity FBLs were offline; are back now
Verizon bolsters spam protection features
Verizon Wireless says: Forward SMS spam to 7726
What is the Yahoo Complaint Feedback Loop (FBL or CFL) and how do I sign up for it?
Why can't we just delete .ru?
Win them back (and boost engagement) with a winback campaign!

May 2022
Content Happens: Now what?
DELIVTERMS: Friendly From
DELIVTERMS: Greylisting
Domain warming gone wrong (and recovered): A case study
Here's why you need CAPTCHA
How to Use Hide My Email in Apple’s Mail App...maybe
Let's clean out your Gmail mailbox!
One-click unsubscribe: Don't do it
Reminder: Dots don't matter in Gmail addresses
SpamAssassin: What does this mean?
The summer of BIMI? Current status and upcoming webinar
Validity FBL adds two new ISPs: SFR and Gandi
What constitutes a transactional message?
What is 'OutHorsing' your email?

June 2022
Alison Gootee: One does not simply ... deliver ... to Microsoft
B2B spam filters and domain blocking: Who blocked my mail?
Better understanding Microsoft
BIMI ISP Status June 2022 (with forthcoming Apple support!)
DELIVTERMS: Postmaster Site
Focusing on engagement: What does that really mean?
Friday fun: Electronic mail fraud and more
Get the basics right, and inbox placement will follow –'s deliverability story
I love RFC 8058 and you should, too
Learn how DNS works with this new zine
Let's create an ANIBIMI!
Lifehacker: Make Spam Fries in Your Air Fryer (yum)
No email for Rick Ross
Orange France: New Sending IP ranges
UK/EU GDPR: What is valid consent?
Webinar Alert: Deliverability 101 with Insightly

July 2022
AMP for email: where did it go?
ARC: What is it and why should you care?
Beware the Pepsi Challenge!
Do image-only emails harm deliverability?
Eliot Harper: One-click unsub in SFMC
EmailKarma celebrates 15 years!
History repeating: a quick lesson about apples and opting out
Jennifer Nespola Lantz: Gmail “Political Pass for Messaging” Program
Lashback acquired by PerformLine
Recap: Deliverability 101 Webinar with Insightly
Spectrum (Brighthouse, Charter, Time Warner) email domains (2022 update)
What a BIMI logo looks like in iOS 16

August 2022
Blocklisted by Spamhaus? Here's what to do.
B2B deliverability is different (and trickier)
Brian Krebs on Email Aliases
DELIVTERMS: DomainKeys Identified Mail (DKIM)
DELIVTERMS: Sender Policy Framework (SPF)
DuckDuckGo's email now open to all
Funny email sign-offs: warmly (but not kindly)
Gmail: Weird RFC 5322 bounces and what to do about them
Google Calendar Spam: How to stop it
Help! I’m seeing the wrong BIMI logo at Yahoo!
ICYMI: BIMI Overview and Current Status for 2022
Michelle Miles: Just Don’t Say It
My blog is old enough to drink
Seedlist testing: It's useful, even at Gmail
Sella Yoffe on Apple Hide My Email
Spamhaus just woke up. Are you ready?
Subdomains: What are they, and do you need them?
Travis Murray: What’s Going on With Gmail and Political Senders?
Vegan SPAM is here! Finally?

September 2022
Apple iOS 16 bonus: report SMS spam!
Apple launches BIMI support page
B2B domain hosting data: a sneak peek
BIMI on iOS: It's alive!
Dead email domain:
Dead email domains: and
DELIVTERMS: Microsoft Smart Network Data Services (SNDS)
Feel Good Friday: The Cure
Feel Good Friday: Just Got Paid
Feel Good Friday: Gorillaz
Guest Post: Gmail Political Pilot Program: Sometimes it feels good to be wrong
How a spoofed email passed the SPF check and landed in my inbox
ICYMI: 2022 Apple MPP Status and Impact Webinar
Is it right to purchase email lists as long as the data is ‘opt-in’?
La Poste adds support for BIMI logos
Pardot: How to keep your prospect database clean and healthy
Preparing for deliverability success this holiday season
Sending spam can cost you: Halfords
SMTP response codes: two resources
SNAFU: The Air Force Just Survived a Reply-All Apocalypse
Upcoming webinar: Preparing for the 2022 Holiday Season

October 2022
Ask Al: Can I use an alternative TLD for my email sends?
BIMI: Current Status in October 2022
Dead email domain:
Zone (Estonia): Domains and BIMI Support
Feel Good Friday: Livin' for the Weekend
Friday Fun: Adopt Spam!
Fun with email hashes
GOP ignoring proffered Gmail spam filter bypass?
Oracle: One Year Later: Apple MPP
Problems sending to Microsoft over IPv6? You're not alone
Reference: All Fastmail Email Domains
Schedule your email to send later on iOS
Spamhaus to block queries from AWS
The Funny, Sad History of the Best Halloween Memes Ever
Use this one weird trick to deliver your email faster

November 2022
A legal analysis of RNC v Google
Bitly (still) gets you blocked
Challenge/Response still exists, and it's still a problem
Dead email domain:
Dead email domain:
Deliverability and the Friendly From
Let’s learn about CASL
Spamhaus is not blocking Gmail
Take your spam trigger words and go away
Thank you, friends
Tis the bookmark mailbox provider help pages
Zoom Email Client: First impressions
Zoom launches new email service

December 2022
Chad S. White: 4 Ways to Maximize Double Opt-In Confirmations for Email
DKIM replay attacks and what to do about them
Feel Good Friday: That boy needs therapy
Figgy Pudding Spam....why?
Friday Fun: Katy Perry - Last Friday Night (TGIF)
From spam ... to music?
Fun with data: Top UK mailbox providers (by one measure)
Gmail having issues; delivery delays reported
Google hires law firm Perkins Coie to fight RNC's spam filter lawsuit
Rackspace Hosted Exchange email service hit by ransomware attack
SFMC: Two-Click Unsubscribe with AMPscript
Six smart people you should hire immediately
SpamAssassin v4.0.0 released
Updated Reference: Altice USA, Suddenlink, Optonline, Cablevision (Synchronoss) Email Domains
What's going on with all the political fundraising spam?

January 2023
Be your own mailbox provider and save!
Deliverability in 2023: Looking Back, Looking Forward
Does Gmail use Spamhaus? Or any other blocklists?
Email authentication, fact vs fiction
Friday Fun: I Can't Wait
Friday Fun: Lazy
Gmail issues? You're not alone
Gmail Verified (Political) Sender Program Pilot Shutting Down
How to deal with bot/ghost clicks in Salesforce Pardot
Is that link scammy? How to check
Italia Online inbound email issues
Klaviyo Users: ICYMI: Intro to Deliverability
Pro-tip: Age that new domain before sending
Pro-tip: No emojis in the friendly from
Top Five Spam Resource Posts of 2022
Jennifer Nespola Lantz: What are email headers?
You survived the holidays…now what?

February 2023
Ask Al: Help, no Yahoo CFL volume!
Cyren is liquidating
DELIVTERMS: Domain Warming
FAQ: List Unsubscribe on Apple Mail on iOS
Friday Fun: A Roller Skating Jam Named Saturdays
Friday Fun: Saint Etienne
Friday Fun: Ride
Google Postmaster Tools trouble on 2/9
How do you know it's spam? We just can't know!
Is Cyren shutting down? Probably.
It's Time to Think About Bounces Differently
Oof; exploitable loopholes in email forwarding
Outlook spam filters fall down, go boom
Pro-tip: Boost engagement by asking for replies
Report that political spam! Don't just hit delete.
Spamhaus suffered outage; is back now
Use this one weird trick to improve Klaviyo deliverability

March 2023
Australian woman arrested for email bombing
Friday fun: Cocteau Twins/Heaven or Las Vegas
Friday fun: The Yeah Song
Gmail: More RFC 5322 bounces coming-- helping to impede DKIM replay attacks
Gmail: Talkin' Tabs in 2023
Google Postmaster Tools down again 3/3
Google Workspace mail going to spam or bulk? 5 Tips
Guest Post: Enthusiastic consent in multiple contexts
ICYMI: Webinar Recap: Spamhaus, Domain Reputation & More
M3AAWG: Help! I Hit a Spam Trap!
Microsoft: Blocking Email from Persistently Vulnerable Exchange Servers
Microsoft OLC will soon respect DMARC policy
Navigating Gmail's Delivery Challenges: Insights for Email Marketers
Never too busy to talk about Microsoft blocking
Reference: Proton Email Domains
Reference: Telstra Email Domains
Spamhaus Deliverability 101 eBook
The truth about cold leads
Thinking about having ChatGPT write your emails?
Webinar Alert: Me + Matthew Stith from Spamhaus

April 2023
A random rant about best practices and leading the horse to water
BIMI: Current Status in May 2023
Cool tool: MessageBird DKIM Wizard
DMARCIAN: Ending the SPF Flattening Experiment
Friday Fun: Max Headroom
Guest Post: Understanding Deliverability in the B2B space
How to Plan a Smooth Migration Between ESPs
ISP Deliverability Guide: Microsoft OLC (Updated for 2023)
Pelosi campaign settles with Illinois man over SMS spam
Polish Provider Onet adds BIMI support
The poop emoji: a legal history (and encoding challenges)

May 2023
Ask the Expert: Alex Brotman, Senior Engineer, Comcast
BIMI: Check out the new checkmark in Gmail
ChatGPT: What do I do when my email goes to the spam folder?
Comcast email addresses: .com or .net?
Friday fun: Entry Level by Wendy Wimmer
Having trouble with the Yahoo FBL? You're not alone.
I got a bounce! What do I do?
Increased bounces at Microsoft domains: What's going on?
Let's talk DMARC, BIMI and Beyond!
Mimestream: New Gmail client for Mac launches
PSA: You can buy a domain directly from the iPhone Settings app
Sending Legally Mandated Emails: How to Put Your Best Foot Forward
Some random BIMI questions (and answers) for May 2023
The billion dollar unsubscribe link
The Goal of Sunsetting
The opposite of success
Webinar alert: Juggling Deliverability Success & Subscriber Lifecycle Management

June 2023
Brian Krebs: Service Rents Email Addresses for Account Signups
By the numbers: DMARC and BIMI adoption in June 2023
Dead domains: and
Friday fun: Hit the Road, Nickleback
Fun with data: Email username rankings
Gmail puts BIMI on pause while addressing exploit
Google: Updating inactive account policies
ICYMI: DMARC, BIMI and Beyond Webinar Recap
iOS17 filtering click tracking links
Microsoft: SNDS Verification Emails not sending
More Apple privacy changes coming
More on iOS17 and Link Tracking Protection
Oracle: 13 Warning Signs of Email Deliverability Problems Ahead
Setting the default from domain in unix mail
Where did the at sign come from?
Yahoo problems? Could be SOA record issues in DNS

July 2023
Did you notice that new Comcast bounce?
Do you double opt-in? And should you, in 2023?
Do you have a deliverability problem? Do I?
Email vs Capitalism, or, Why We Can't Have Nice Things
Friday Fun: If This Book Exists, You're in the Wrong Universe
Friday fun: It's not spam, it's SMEAT!
Friday Fun: Why the Windows XP Meadow no longer exists
Gmail glitch: That's annoying!
Google notification: Updating our Google Account inactivity policy
ICYMI: Serving up Expert Deliverability Tips with Epsilon's John Stephenson
Let's learn about KumoMTA!
Link roundup: Apple iOS 17 and macOS Sonoma link filtering
Nope. No Gmail feedback loop, sorry.
Typos are really bad news; here's why
XNND (now Wombatmail) is still here for all your DNS needs

August 2023
Breaking news: New FTC proposed settlement over CAN-SPAM violation
Do email addresses die? TL;DR? Yes, and...
Everything broke last week
Friday Fun: Email creates evidence.
From Twilio Sendgrid: Ask the Expert: Lili Crowley, Postmaster, Yahoo!
FTC Assesses Primary Purpose of Emails in CAN SPAM Enforcement
Fun Friday: Beastie Boys / Sabotage
Gmail may ask for verification to add a forwarding address or edit filters
Google purging inactive accounts (and notifying the world)
Hormel donates 264,000 cans of SPAM to Hawaiians SPF issue on August 18th
ICYMI: Deliverability for Newsletter Senders
iiNet users losing free email access
Microsoft: Body hash did not verify error
Microsoft errors: 5.4.4 (unable to route: no mail hosts for domain)
Microsoft JMRP (FBL) woes starting August 16th
Apple: Private Relay vs Private Relay vs Hide my Email
RNC vs Google: Republicans lose this round
Simon Harper on list growth guidance from Dan Oshinsky
Spam hurts the earth?
Spamhaus glitch Friday night
United Online (Juno, Netzero): Domains and Updated Postmaster Site
Verizon Wireless users: Disabling inbound email-to-SMS
Virgin Media (UK) Email Troubles

September 2023
Avoid this one specific TLD when choosing your domain name
FBLs in 2023: are they needed? How should you handle them?
Four questions about ISP feedback loops
Gmail now rejecting unauthenticated mail
jwz: US B2C domain rankings in the wild
MacOS Sonoma drops support for legacy mail plug-ins
Microsoft: Multiple types of invalid user bounces
Microsoft: New Outlook for Windows email app
More analysis on the RNC spam lawsuit against Google
Onet (Poland): Account Inactivity Policy
Reference: CenturyLink Email Domains
Salesforce Marketing Cloud: Deliverability Fundamentals
Spamhaus: The return of the ASN-DROP
Telstra Bigpond moves to p=reject DMARC policy
Validity to start charging for Feedback Loop email feeds

October 2023
An Email Sending Guide for SaaS Builders
Apple iOS 17 and LTP: How does it affect email marketing?
DMARC to be required at Gmail in 2024
Gmail and Yahoo: New deliverability requirements coming in 2024
Holiday deliverability in 2023 and beyond
I know you've got to fundraise, but...
ICYMI: A Small Publisher’s Guide to Email Deliverability
Microsoft: 451 4.7.500 Server busy delays on Wednesday 10/11
Microsoft SNDS was down for maintenance 10/18
MX records changing for Microsoft-hosted domains ... eventually
Oops: Important information about your Amazon gift card order
Spamhaus: False positive issue on Friday 10/13
Spamhaus wants your spam!
Spammers and scammers and IP address space, oh my!

November 2023
A quick and easy Black Friday / Cyber Monday sending tip
Chrome turns on real-time phishing protection
Cold leads? Shiver me timbers! And three points.
Dead domains: Sparklight / Cable One
Eric Goldman: RNC v. Google and Section 230
Fun with data: DMARC at top 100 MBP domains
Gmail: New spam-related rejections and what you need to know
Gmail: Status, Changes, and Challenges
Guest Post: Cornucopia of Comms Coming Soon
Guest post: Improving Reputation Ahead of new Gmail/Yahoo Changes
ICYMI: Understanding DKIM Replay Attacks
Inbox testing: Everything new is old again?
Join me and the CSA to learn about DKIM Replay Attacks
Mailchimp to shut down TinyLetter in 2024
New FBL feed mechanism from Abusix launches
Stuck in the middle with you: When shared domains are actively risky
TLD .us is still full of bad stuff

December 2023
All the different bounces you can get from O365
Bonus Webinar: A Crash Course on List Unsubscribe
Brian Krebs on the new ICANN Registration Data Request Service process
Come and get a free email account!
Comparing ESP/Newsletter Sender Free Tier Info
DMARC Alert!
Fun with small data: my own list broken down by mailbox provider
Gmail: As of today...
Gmail: new spam filter update featuring RETVec
ICYMI: Marcel Becker and Al Iverson on Domain Reputation and Apple MPP
Is Google Postmaster Tools secure?
It begins: Google retiring inactive accounts
Ken Magill's back, and he's got a story to tell: His own
Salesforce Marketing Cloud: Email validation, IP strategy
Spam History: Roger Ebert and the Boulder Pledge
Talking List Hygiene: Andrew Kordek and Al Iverson
Validity to restrict access to reputation data via DNS
Webinar alert: Get ready! The DMARCpocalypse is coming!
Yahoo Mail and Gmail compliance deadline updates

January 2024 is the cool new tool you need to check your email headers (and more)
BIMI mailbox provider support in January 2024
Bonus: DMARC Dictionary from dmarcian
Bonus: Email Service Provider and Newsletter Platform Yahoo / Google Compliance Links
Bonus Webinar: Salesforce Pardot Deliverability 101 subscribers to land in Yahoo Mail
DMARC adoption trends: Q3-Q4 2023
DMARC deep dive from M3AAWG
DMARC, the quick and dirty way
DMARC reporting: Run away from RUF
DMARC Reporting Tools & Services
Don't double up on DMARC
ICYMI: DMARC-Pocalypse Now Webinar
Spam Resource Spotlight: Alison Gootee
Swaks is a cool tool (and has been updated)
Talking 2024 Gmail Sender Requirements with Neil Kumaran
Yahoo Mail/Gmail 2024 Easy Sender Compliance Guide

February 2024
BIMI/VMC adoption trends: Q3-Q4 2023
Bonus SFMC Tip: Configuring reply handling in Salesforce Marketing Cloud
Checkmylink: A Cool Tool to help you stay safe!
Encrypted email service Skiff to shut down
Friday Fun: Feel Good Inc (on Stylophone)
Fun with data: Apple Domains
Google is not sunsetting Gmail
Google Workspace shutting down LSA support
ISP Deliverability Guide: Gmail (Updated for 2024)
ISP Deliverability Guide: Mimecast
Microsoft Outlook (on Windows) user? Upgrade now!
Picking the right email newsletter platform
Seznam joins the CSA
SFMC tip: Salesforce Marketing Cloud and multi-bounce domain
Spam Fried Rice: Doesn't this sound delicious?
Spam Resource Spotlight: Mickey Chandler
Spamhaus blocking queries from Digital Ocean Cloud servers
Webinar Rewind: Deliverability 101 for Klaviyo Users

March 2024
Admin update: Some links have changed
Bonus: Beyond The Basics: An Email Requirements Roundtable with Google, Yahoo and Valimail
Come to the CSA Email Summit April 22-24 in Cologne
Does a spam investigator need a license?
Full email headers: What are they and how to access them (Updated for 2024)
Fun with bad data: That doesn't go there!
Gmail: New compliance dashboard in GPT
iPhone users: dealing with spam messages
Learning about the SubdoMailing Exploit
Now hiring: Braze
One click unsub confusion: Let's clarify!
RQIBAADL: Random questions I've been asked about DMARC lately: a FAQ
Spam Resource Spotlight: Brad Gurley
Spam Resource Spotlight: Skyler Holobach
Spam Resource Spotlight: Wayne Mehl
Spamhaus Listing Myths: Fact or Fiction?
SPF is good enough. True or False?
Spotted at Aldi: Maple SPAM!
Wombatmail, now with spam traps + more

April 2024
A sampling of DMARC rejection examples
DELIVTERMS: DNS aka Domain Name System
DELIVTERMS: Email Authentication
Exchange Online external recipient limits are coming
Fun with data: DKIM selectors from spam
Gmail error: Receiving mail too fast?
Gmail rejection: Your sending IP address is not authorized
Gmail: Subscription management is coming
Going deep: DMARC at the sub-sub-domain level?
Google Workspace shutting down LSA support (second notice)
KumoMTA: Moving Beyond IP Reputation
MBP Spotlight:
MBP Spotlight:
MBP Spotlight:
Microsoft: Intermittent STOREDRV.Deliver errors on April 9th
Now hiring: Front
See you at the ESPC 2024 Spring Meeting?
SFMC Deliverability Overview and Best Practices
Spam Resource hits 4 million views!
Spam Resource Spotlight: Annalivia Ford
Spam Resource Spotlight: Tony Patti
Validity: State of Email Live: In Conversation with Microsoft
Valimail: DMARC and Deliverability: Connecting the Dots

May 2024
Ask Al: SPF -all or ~all? (Updated for 2024)
Australian spam penalty: Luxottica pays $1.5m
Dead domain (sort of):
Friday Fun: Lorde: Take Me to the River
MBP Spotlight:
Spam Resource Spotlight: Tara Natanson