Intermediate 9 min
How AutoSPF Enables SPF & DKIM in cPanel - A Friendly Deep Dive
How AutoSPF Enables SPF & DKIM in cPanel - A Friendly Deep Dive explains SPF record management, sender authentication, troubleshooting steps, and how.
Knowledge Base
Blog
Expert guides on SPF, DKIM, DMARC, and email security.
Foundational 8 min
Elkdata OÜ: SPF & DKIM Configuration - A Step-by-Step Guide by AutoSPF
At AutoSPF, we believe that proper email authentication is the foundation of secure and reliable email communication.
Intermediate 16 min
How can I use SPF lookup results to troubleshoot email deliverability problems?
You use SPF lookup results by reading the Authentication-Results/Received-SPF headers to see which IP, mechanism.
Advanced 14 min
What Is Kitterman SPF And How Does It Help With Email Deliverability?
Kitterman SPF is a free, standards‑aligned online SPF generator and validator that parses your domain’s SPF record, simulates real‑world checks (mechanisms.
Advanced 8 min
AutoSPF’s In-Depth Guide to Setting Up DMARC, SPF & DKIM on HostGator
Email spoofing, phishing, and other unauthorized email-domain abuse are serious threats - for everyday websites, businesses, and brands of all sizes.
Foundational 8 min
How has email authentication evolved over the years?
Did you know that email was never meant to be secure because cybercriminals were never meant to target it in the first place?
Advanced 14 min
What Does An SPF Record Example Look Like For A Single Mail Provider?
“A correct, minimal SPF record for a single mail provider uses v=spf1 include:_spf.google.com ~all. Learn how to build and validate your SPF record.”
Intermediate 8 min
AutoSPF Guide: How to Configure SPF & DKIM with Barracuda
Email spoofing, phishing, and deliverability issues remain a big challenge for any organisation sending email at scale.
Intermediate 7 min
AutoSPF Explains: How to Configure AuthSMTP with SPF & DKIM for Better Email Deliverability
In today’s email-heavy world, protecting your domain against spoofing, phishing, and spam is not just a nice-to-have - it’s essential.
Advanced 17 min
How Can I Check If My SPF Record Is Set Up Correctly Using An SPF Record Tester?
To check if your SPF record is set up correctly, run an SPF record tester (for example, AutoSPF’s free SPF Analyzer) by entering your domain.
Intermediate 16 min
What are common signs that multiple SPF records are breaking SPF authentication?
The most common signs that multiple SPF records are breaking SPF authentication are: DNS for your domain returns more than one v=spf1 TXT (or both TXT and.
Intermediate 6 min
Google Updates SPF Records: What Domain Owners Need to Fix in 2026
Google's 2024 bulk sender guidelines require every domain sending 5,000+ daily messages to Gmail to authenticate with SPF, DKIM, and DMARC. Learn exactly what to fix, when enforcement kicks in, and how to test compliance.
Advanced 15 min
How Can I Use An SPF Checker To Troubleshoot Email Delivery Issues After Changing Mail Providers?
Use an SPF checker to fetch your current SPF record, validate syntax, confirm the new provider’s include and IPs, simulate sending IPs for pass/fail.
Intermediate 9 min
How to Configure Cvent with DKIM (and Why SPF Isn’t Enough)
In today’s email environment, ensuring that messages sent from your organization actually reach recipients - and are seen as legitimate.
Foundational 9 min
Why Authenticate Your Emails with Constant Contact?
When you send emails through Constant Contact using your own domain, you want to make sure those emails actually reach your recipients’ inbox.
Intermediate 9 min
How to Properly Configure SPF & DKIM for Your ESP - A Guide by AutoSPF
In today’s world, email remains the backbone of communication for businesses - marketing announcements, customer notifications, transactional receipts.
Foundational 6 min
TLS and DKIM explained: Why you need both for strong email security
DKIM RFC 6376 signs email messages cryptographically, and unlike SPF, the signature survives email forwarding - which is why DMARC alignment via DKIM is.
Foundational 8 min
AWeber SPF & DKIM Setup - A Guide by AutoSPF
In the world of email marketing, ensuring your emails actually reach your subscribers’ inboxes (and not their spam folders) is often more about what’s behind.
Foundational 8 min
What does 'queued email' mean, and how can you fix it?
We’ve all hit that moment where an email just sits there and refuses to leave, and suddenly you’re refreshing your inbox like it’s a magic trick.
Intermediate 10 min
How to Configure SPF & DKIM for AFAS Online, A Guide by AutoSPF
In today’s email-delivery landscape, ensuring that your outgoing mail is properly authenticated is essential - not just for deliverability.
Intermediate 5 min
What happens when you don’t comply with Gmail’s new enforcement laws?
Major Email Service Providers like Gmail now recognize that securing your email infrastructure is no longer optional.
Foundational 17 min
10 Reasons The SPF Standard Is Essential For Protecting Your Domain
The Sender Policy Framework (SPF) has emerged as an indispensable component of modern email authentication.
Intermediate 5 min
The 12.4 billion shield for your email communications: Why DMARC software is the unsung hero in the war against phishing actors!
The 12.4 billion shield for your email communications: Why DMARC software is the unsung hero in the war against phishing actors! explains SPF record.
Foundational 17 min
Why Every Domain Owner Should Maintain A Valid SPF Record
An SPF record (Sender Policy Framework) is a crucial piece of your domain’s DNS settings that defines which mail servers are authorized to send email on behalf.
Intermediate 17 min
How the SPF Record Character Limit Affects Your Email Authentication
Sender Policy Framework (SPF) is a cornerstone email authentication protocol designed to combat email spoofing and enhance email security.
Intermediate 15 min
SPF Sendgrid Configuration Guide: Ensure Your Emails Pass Authentication
To authenticate email sent via SendGrid, add include:sendgrid.net to your SPF record and configure SendGrid's domain authentication CNAMEs (two for DKIM, one for the return-path). The sendgrid.net include consumes 5 of your 10 available DNS lookups.
Foundational 3 min
What is a TXT SPF record and why is it important?
Per RFC 7208, SPF evaluation is capped at 10 DNS mechanism lookups and 2 void lookups per check.
Intermediate 16 min
TXT SPF Multiple Include Explained: Simplifying Complex SPF Records
The Sender Policy Framework (SPF) is a vital component of email security and email authentication.
Intermediate 5 min
Cybersecurity experts warn against a new phishing tactic hiding in your email subject line!
According to the FBI's 2022 Internet Crime Report (IC3), 300,497 US-based victims reported phishing incidents in a single year.
Intermediate 4 min
Setting SPF, DKIM, and DMARC for Loops.so
DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header.
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