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Knowledge Base

Blog

Expert guides on SPF, DKIM, DMARC, and email security.

Intermediate 6 min

Mailjet SPF and DKIM Setup: A Complete Deliverability Guide by AutoSPF

When organizations use third-party email platforms like Mailjet, proper SPF and DKIM configuration becomes a non-negotiable requirement for inbox.

Foundational 11 min

What are the initial troubleshooting steps Kitterman suggests when SPF checks fail?

Kitterman’s initial troubleshooting steps are to read the receiver’s Authentication-Results to identify the precise SPF result (fail, softfail, neutral.

Intermediate 6 min

AutoSPF’s Complete Guide to Proofpoint Essentials: SPF & DKIM Configuration for Maximum Email Security

In today’s email-driven world, securing your domain’s email communication is non-negotiable.

Intermediate 11 min

Why does an SPF record example sometimes cause legitimate emails to be marked as spam?

An SPF record example can cause legitimate emails to be marked as spam when it includes syntax errors, duplicated or misordered mechanisms.

Advanced 7 min

From Monitoring to Enforcement: Building a Scalable DMARC Strategy for Long-Term Email Protection

Protecting your entire email ecosystem and ensuring that an attacker cannot intercept or spoof your outgoing emails requires more than just cursory checks.

Intermediate 7 min

NetSuite SPF and DKIM Configuration - A Definitive Guide by AutoSPF

In today’s digital world, the success of your email communications doesn’t just depend on creative copy or timely outreach.

Foundational 11 min

Why should I use an SPF validator before making DNS changes?

You should use an SPF validator before making DNS changes because it catches syntax and policy errors, simulates the impact of proposed TXT records.

Foundational 6 min

Mandrill SPF & DKIM Configuration: A Complete Step-by-Step Guide by AutoSPF

Mandrill SPF & DKIM Configuration: A Complete Step-by-Step Guide by AutoSPF explains SPF record management, sender authentication, troubleshooting steps,.

Intermediate 7 min

A Complete Guide to Configuring SPF & DKIM for Mailigen (and Why It Matters)

In the fast-paced digital world, your inbox is both a critical communication channel and a major point of vulnerability.

Foundational 12 min

How Can I Perform An SPF Lookup For My Domain To Check Authorization Records?

You can perform an SPF lookup for your domain by querying its DNS TXT record containing “v=spf1” using command‑line tools (dig, nslookup.

Intermediate 8 min

AutoSPF’s Complete Guide to Setting Up Mailgun SPF & DKIM for Reliable Email Delivery

Deliverability is one of the most critical challenges any modern business faces when sending email at scale.

Intermediate 8 min

AutoSPF’s Complete Guide to Setting Up Mailgun SPF & DKIM for Reliable Email Delivery

Deliverability is one of the most critical challenges any modern business faces when sending email at scale.

Intermediate 7 min

AutoSPF Complete Guide to Configuring SPF and DKIM for MailerLite

Every successful campaign sent through MailerLite depends on proper email authentication behind the scenes - and at the core of that authentication are.

Intermediate 12 min

How can I simplify a complex SPF record flagged by Kitterman without losing legitimate senders?

To simplify a complex SPF record flagged by Kitterman without losing legitimate senders, audit and inventory every real sender.

Intermediate 7 min

Why email authentication rules are stricter for bulk senders (and what to do about it)

As phishing rates rise, email authentication is no longer a ‘nice to have’ even for low-volume senders.

Intermediate 11 min

How can I create an SPF record for Office 365 without breaking other mail services?

To create an SPF record for Office 365 without breaking other mail services, inventory all legitimate senders.

Advanced 6 min

SendGrid SPF & DKIM Setup: Authentication Guide

Set up SPF, DKIM, and DMARC for SendGrid correctly. A step-by-step guide to authenticating your domain and keeping SendGrid email out of spam.

Foundational 14 min

What is an SPF lookup and why does it matter for email delivery?

An SPF lookup is the DNS-based check mail servers perform to verify that the sending IP is authorized by a domain’s SPF record.

Foundational 8 min

FreshMail SPF & DKIM Setup: A Complete Guide

Authenticate your FreshMail email with SPF and DKIM. Follow this complete, step-by-step setup guide to improve deliverability and prevent spoofing.

Advanced 13 min

How Can I Identify SPF Include Loops Or Recursive Includes With A Validator?

Use a DNS-aware, graph-based SPF validator that expands every include/redirect into an explicit include graph and runs cycle detection (e.g.

Foundational 6 min

What is SPF flattening, and why is it important?

"The misconception about SPF flattening is that it's a one-time fix," says Adam Lundrigan, CTO of DuoCircle and architect of AutoSPF's flattening engine.

Intermediate 8 min

Complete Guide by AutoSPF: How to Configure SPF and DKIM for Exclaimer and Secure Your Email Domain

Email authentication is one of the most critical foundations for protecting your brand and domain from spoofing, phishing, and deliverability problems.

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.

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.

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