AutoSPF Blog

Intermediate

How to Properly Configure SPF & DKIM for Your ESP — A Guide by AutoSPF
ByBrad Slavin December 1, 2025December 1, 2025 Reading Time: 8 minutes

In today’s world, email remains the backbone of communication for businesses — marketing announcements, customer notifications, transactional receipts, transactional alerts, newsletters, and more. But with rising concerns around phishing, spoofing, and brand impersonation, it’s no longer good enough to simply send email from your domain and hope they land safely in your recipients’ inboxes. That’s…

Read More How to Properly Configure SPF & DKIM for Your ESP — A Guide by AutoSPF
Advanced

How can I test an SPF flattener’s compatibility with DMARC and DKIM?
ByBrad Slavin December 1, 2025December 1, 2025 Reading Time: 10 minutes

To test an SPF flattener’s compatibility with DMARC and DKIM, first publish the flattened SPF in a non-authoritative “shadow” label, run DNS and lookup-budget checks, simulate end-to-end mail flows from every sender with DKIM signed, validate SPF/DKIM pass and DMARC alignment under relaxed/strict modes, and monitor aggregate and real-time metrics before and after a phased…

Read More How can I test an SPF flattener’s compatibility with DMARC and DKIM?
Foundational

TLS and DKIM explained: Why you need both for strong email security
ByBrad Slavin November 28, 2025December 1, 2025 Reading Time: 5 minutes

When you think of email security, what comes to your mind? Chances are, you might have thought of it as a single checkpoint where the email server decides whether to allow the email through. But email security isn’t just about that. It’s about fighting two different battles at two different layers. The first is protecting…

Read More TLS and DKIM explained: Why you need both for strong email security
Advanced

How can I safely flatten SPF records while preserving SPF validation?
ByBrad Slavin November 28, 2025November 28, 2025 Reading Time: 12 minutes

You can safely flatten SPF records while preserving SPF validation by recursively expanding includes/redirects into explicit ip4/ip6 mechanisms within the 10-lookup budget, scheduling automated re-flattening with atomic DNS updates and monitoring, and combining selective flattening, subdomain delegation, and stable includes to maintain equivalent semantics across major receivers. Flattening SPF is the process of replacing mechanisms…

Read More How can I safely flatten SPF records while preserving SPF validation?
Foundational

AWeber SPF & DKIM Setup — A Guide by AutoSPF
ByBrad Slavin November 27, 2025November 27, 2025 Reading Time: 7 minutes

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 the scenes than what meets the eye. At AutoSPF, we believe that proper email authentication is the foundation of trust — both with email recipients and with inbox providers. That’s…

Read More AWeber SPF & DKIM Setup — A Guide by AutoSPF
Advanced

AutoSPF’s Guide to Configuring SPF & DKIM for Avanan: A Detailed Walk-through
ByBrad Slavin November 26, 2025November 28, 2025 Reading Time: 9 minutes

As AutoSPF, my mission is simple: to help you lock down your email infrastructure so your domain only sends legitimate mail, and to make spam, impersonation, and spoofing attacks nearly impossible. In this guide, I’ll walk you through — step by step — how to configure your domain for use with Avanan, using the powerful…

Read More AutoSPF’s Guide to Configuring SPF & DKIM for Avanan: A Detailed Walk-through
Foundational

What does ‘queued email’ mean, and how can you fix it?
ByBrad Slavin November 25, 2025November 25, 2025 Reading Time: 8 minutes

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. When that happens, it’s easy to assume the system is broken, but most of the time the problem is completely fixable once you know what’s happening behind the scenes. …

Read More What does ‘queued email’ mean, and how can you fix it?
Intermediate

Setting Up SPF & DKIM for Amazon SES
ByBrad Slavin November 25, 2025November 25, 2025 Reading Time: 8 minutes

In today’s email-driven world, ensuring your messages reliably reach the inbox — and aren’t flagged as spam or spoofed — is mission-critical. Among the most powerful tools you can deploy are SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mail). When you’re sending via Amazon SES, setting both up properly means your domain is authenticated,…

Read More Setting Up SPF & DKIM for Amazon SES
Intermediate

How to Configure SPF & DKIM for AFAS Online – A Guide by AutoSPF
ByBrad Slavin November 24, 2025November 24, 2025 Reading Time: 9 minutes

In today’s email-delivery landscape, ensuring that your outgoing mail is properly authenticated is essential—not just for deliverability, but for protecting your brand, your domain’s reputation, and your customers from impersonation or phishing. At AutoSPF, we believe strongly in doing this right, and in this guide we walk you step-by-step through how to configure SPF (Sender…

Read More How to Configure SPF & DKIM for AFAS Online – A Guide by AutoSPF
Intermediate

What happens when you don’t comply with Gmail’s new enforcement laws?
ByBrad Slavin November 21, 2025November 21, 2025 Reading Time: 5 minutes

Major Email Service Providers like Gmail now recognize that securing your email infrastructure is no longer optional. As cyberattackers are always on the lookout for vulnerabilities, leaving even a single authentication gap in your ecosystem gives them an opening to misuse your domain. And that’s exactly why Gmail has become so strict. If your domain…

Read More What happens when you don’t comply with Gmail’s new enforcement laws?