The Definitive Guide To Configuring SPF and DKIM for Salsa Labs
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The Definitive Guide To Configuring SPF and DKIM for Salsa Labs

In today’s email ecosystem, ensuring your messages are authenticated and trusted by mail servers is no longer optional: it’s mission-critical. Misconfigured email authentication is one of the leading causes of low deliverability, placement in spam folders, and spoofing attacks. That’s where SPF and DKIM come in: two foundational email authentication protocols that help protect your…

How a DKIM Replay Attack Successfully Spoofed Google — A Deep Dive

How a DKIM Replay Attack Successfully Spoofed Google — A Deep Dive

In today’s email threat landscape, phishing attacks have grown far more sophisticated than ever before. Gone are the days when scammers relied on bad grammar, obvious spoofed domains, or clearly malicious links. Modern attacks can mimic legitimate system alerts so convincingly that even tech-savvy users hesitate to dismiss them. One such evolving threat is what’s…

How can I implement a DMARC policy for domains using Gmail or Google Workspace?

How can I implement a DMARC policy for domains using Gmail or Google Workspace?

You implement a DMARC policy for a domain using Gmail/Google Workspace by configuring SPF and DKIM alignment for all senders, publishing a DMARC TXT record at _dmarc.yourdomain with monitoring (p=none, rua/ruf), analyzing reports, and then progressively enforcing p=quarantine and p=reject—using pct and sp for subdomains—while monitoring results in Google Admin/Postmaster Tools and DMARCReport. Implementing DMARC…

5 situations in which your DMARC policy should be ‘p=quarantine’

5 situations in which your DMARC policy should be ‘p=quarantine’

DMARC in monitoring mode provides visibility, but it is not sufficient. After all, visibility alone does not stop abuse. Once you know that there are unauthorized senders sending emails on behalf of your domain, continuing to monitor them without taking any preventive steps serves little purpose.  At this stage, it is important that you start…

How can a DMARC Analyzer help reduce phishing emails sent from my domain?

How can a DMARC Analyzer help reduce phishing emails sent from my domain?

A DMARC Analyzer like DMARCReport reduces phishing from your domain by enforcing SPF/DKIM alignment through DMARC policy, mapping and eliminating unauthorized senders with aggregate/forensic reporting, and guiding you—via dashboards, alerts, and automated policy recommendations—from monitor to quarantine/reject without disrupting legitimate mail. DMARC (Domain-based Message Authentication, Reporting & Conformance) is the control plane for email identity:…

FreshMail DKIM & SPF Setup — A Complete Guide

FreshMail DKIM & SPF Setup — A Complete Guide

If you send email marketing campaigns using FreshMail, you already know how powerful and flexible the platform is. However, to ensure your emails actually reach the inbox and don’t get blocked, flagged as spam, or rejected outright, you need to authenticate your domain properly. That’s where SPF and DKIM come in — two critical email…

What is a DMARC record and why does it matter for my email security?

What is a DMARC record and why does it matter for my email security?

A DMARC record is a DNS TXT policy that tells receiving mail servers how to handle emails that claim to be from your domain by verifying SPF/DKIM alignment, and it matters because it prevents spoofing, improves deliverability, and gives you visibility through reports to enforce authentication safely. DMARC (Domain-based Message Authentication, Reporting & Conformance) builds…

Cyberattack Shuts School, Cyber Scam Thwarted, JLR Faces Losses

Cyberattack Shuts School, Cyber Scam Thwarted, JLR Faces Losses

This is the first edition of the month, and we have curated the top four cyber incidents that you must be well-versed in. Cyber mishaps this week revolved around a data breach at Higham Lane School, a potential cyber scam that was prevented by a hacker, and Brightspeed’s customer data breach incident.  Meanwhile, the unfortunate…

What Are The Best Practices For Making DMARC Work With Cloud Email Providers?

What Are The Best Practices For Making DMARC Work With Cloud Email Providers?

The best practices for making DMARC work with cloud email providers are to authenticate every sender with aligned DKIM, keep SPF lean via subdomain delegation and managed includes, roll out DMARC in phased enforcement (p=none → quarantine → reject) with continuous rua/ruf monitoring, and mitigate edge cases (forwarding, mailing lists) with ARC and custom return-paths—while…

How to Fix “External Verification Failure” — A Complete Guide by DMARCReport

How to Fix “External Verification Failure” — A Complete Guide by DMARCReport

Email authentication is no longer a luxury — it’s a critical part of protecting your domain from abuse, spoofing, phishing, and deliverability issues. At DMARCReport, we help thousands of organizations understand and resolve technical email security problems every day. One of the most common issues domain owners encounter when managing DMARC records is an error…

What are the basic components required to create a DMARC record?

What are the basic components required to create a DMARC record?

To create a DMARC record, you publish a DNS TXT record at _dmarc.yourdomain.com containing at least v=DMARC1 (this must be first) and p=(none|quarantine|reject), and you typically add optional tags like rua, ruf, pct, adkim, aspf, sp, fo, and ri to control reporting, alignment, rollout, and subdomain behavior. DMARC (Domain-based Message Authentication, Reporting, and Conformance) tells…

What Are The Best Practices For Gradually Enforcing DMARC On G Suite?

What Are The Best Practices For Gradually Enforcing DMARC On G Suite?

The best practices for gradually enforcing DMARC on G Suite (Google Workspace) are to inventory and align all sending sources with SPF/DKIM, deploy DMARC at p=none with full RUA/RUF reporting, monitor and remediate using DMARCReport, then phase to quarantine and reject with pct/subdomain controls while rotating DKIM keys, addressing forwarding via ARC/SRS, and validating readiness…

Understanding Proofpoint’s Inbound DMARC Handling — A DMARCReport Analysis

Understanding Proofpoint’s Inbound DMARC Handling — A DMARCReport Analysis

Email authentication standards like DMARC (Domain‑based Message Authentication, Reporting, and Conformance) have become indispensable in the fight against spoofing, phishing, and domain impersonation. Organizations rely on DMARC not only to protect their brand but also to ensure the authenticity of email traffic traversing the internet. At DMARCReport, we’re passionate about helping security teams, IT administrators,…

How can I verify that my DKIM signing is properly aligned with DMARC for Gmail?

How can I verify that my DKIM signing is properly aligned with DMARC for Gmail?

To verify that your DKIM signing is properly aligned with DMARC for Gmail, open the message in Gmail’s “Show original” view and confirm that dkim=pass for a signature whose d= domain matches the visible From domain (strict alignment) or shares the same Organizational Domain (relaxed alignment), that DMARC shows pass (via dkim), and that the…

What Are Best Practices For Securing Access And Protecting Data When Using A Free DMARC Analyzer?

What Are Best Practices For Securing Access And Protecting Data When Using A Free DMARC Analyzer?

To securely use a free DMARC analyzer, enforce least-privilege, read-only collection via dedicated mailboxes or secure uploads; redact/anonymize sensitive fields before sharing; mandate strict data retention and deletion; harden transport with TLS 1.2+/mTLS and strong SFTP/HTTPS settings; continuously log and monitor access; validate vendor compliance (DPA, SOC/ISO); and control programmatic access with RBAC, scoped API…

Everything You Need to Know About GPS Spoofing

Everything You Need to Know About GPS Spoofing

In our increasingly connected world, satellite navigation systems like the Global Positioning System (GPS) have become indispensable. Whether you’re using navigation in your car, tracking delivery vehicles, coordinating logistics, or powering critical infrastructure systems, GPS plays a foundational role in modern life. But what happens when the integrity of that positioning system is compromised? Enter…