How to Conduct an Email Investigation — A Comprehensive Guide by DMARCReport

How to Conduct an Email Investigation — A Comprehensive Guide by DMARCReport

Email remains one of the most ubiquitous forms of communication in both personal and professional settings. It’s fast, familiar, and powerful — but it’s also one of the most abused tools in a cybercriminal’s arsenal. From targeted phishing attempts and social engineering schemes to broader spoofing campaigns, malicious actors constantly exploit email vulnerabilities to achieve…

Why should a business consider using custom DKIM for its email sending?

Why should a business consider using custom DKIM for its email sending?

A business should use custom DKIM because it provides domain-aligned authentication that boosts deliverability and brand trust, satisfies DMARC enforcement requirements, reduces spoofing risk, and gives you operational control over keys, selectors, subdomains, and multi-ESP sending. Digital signatures are the backbone of modern email trust: DKIM (DomainKeys Identified Mail) lets receivers verify that your messages…

What are common signs that DKIM is not working for outgoing mail?

What are common signs that DKIM is not working for outgoing mail?

The most common signs that DKIM is not working for outgoing mail are a missing or malformed DKIM-Signature header, Authentication-Results showing dkim=none/fail/permerror/temperror (often with “body hash did not verify” for bh mismatches), DMARC aggregate/forensic reports flagging DKIM alignment failures, and MTA logs indicating signing was skipped or failed due to selector/key/DNS errors. Email authentication context…

How Phishing Scammers Get Your Email Address — and How DMARCReport Can Help You Stop Them

How Phishing Scammers Get Your Email Address — and How DMARCReport Can Help You Stop Them

Every day, millions of people and businesses around the world fall prey to phishing attacks — fraudulent schemes designed to trick users into revealing sensitive data like passwords, financial information, or proprietary business credentials. At DMARCReport, we understand the danger these threats pose, and we want to give you a complete picture of how phishing…

How can I generate and interpret DMARC aggregate reports for G Suite?

How can I generate and interpret DMARC aggregate reports for G Suite?

You generate DMARC aggregate reports for G Suite (Google Workspace) by publishing a DMARC DNS TXT record that includes a valid rua=mailto: address for report collection, and you interpret them by parsing the XML fields (source_ip, count, policy_evaluated, dkim/spf alignment, disposition, reason) to map sending sources and authentication outcomes—best done with a purpose-built analyzer like…

How DMARCReport Helps You Improve Email Deliverability with DMARC

How DMARCReport Helps You Improve Email Deliverability with DMARC

In today’s digital world, email remains one of the most essential communication channels for organizations of all sizes — from multinational brands to local businesses. Yet while email offers immense marketing and operational value, it also brings challenges. One of the biggest barriers to success isn’t just sending email — it’s getting it into the…

Why Google, Yahoo, Microsoft, and iCloud Are Enforcing Stricter Email Authentication Standards

Why Google, Yahoo, Microsoft, and iCloud Are Enforcing Stricter Email Authentication Standards

Email continues to be one of the most widely used communication channels for businesses, consumers, and service providers worldwide. However, its widespread use has also made it a prime target for abuse. Phishing, spoofing, and impersonation attacks have increased dramatically, causing significant financial losses and eroding trust in email communication. To counter these threats, major…

How can I perform a DKIM lookup for my domain to verify my email authentication?

How can I perform a DKIM lookup for my domain to verify my email authentication?

To perform a DKIM lookup for your domain and verify email authentication, extract the DKIM selector from a signed message’s header, build the DNS name as selector._domainkey.yourdomain, query its TXT record with dig/nslookup (or an API), interpret the key tags, and optionally validate a message’s DKIM-Signature against that published public key. Context and background DKIM…

Configuring WP Mail SMTP for Authenticated WordPress Emails

Configuring WP Mail SMTP for Authenticated WordPress Emails

If you run a website based on WordPress and rely on it to send emails — user sign-up confirmations, notifications, password resets, newsletters, or contact-form replies — then you probably know how finicky email deliverability can be. Out-of-the-box WordPress typically uses the PHP mail() function, which often results in un-authenticated emails that get flagged as…

What is the impact of DMARC on email deliverability for Office 365 users?

What is the impact of DMARC on email deliverability for Office 365 users?

Implementing DMARC in Office 365 measurably improves inbox placement and reduces spoofing by giving Exchange Online Protection (EOP) and Outlook strong, aligned authentication signals (SPF/DKIM), but misconfiguration or unenrolled third‑party senders can lead to legitimate messages being quarantined or rejected—so phased rollout and continuous monitoring are essential. DMARC (Domain-based Message Authentication, Reporting, and Conformance) sits…

How to Add a DKIM Record to Cloudflare — A Complete Guide by DMARCReport

How to Add a DKIM Record to Cloudflare — A Complete Guide by DMARCReport

In today’s digital world, email continues to be one of the most essential forms of communication for businesses. From customer support to marketing campaigns and internal workflow, email delivers critical messages every second. But as the volume of email grows, so do threats like phishing, spoofing, and spam. That’s where proper email authentication steps in…

How can I use a DMARC creator to generate a correct DMARC DNS record?

How can I use a DMARC creator to generate a correct DMARC DNS record?

Use a DMARC creator like DMARCReport by entering the required tags (v=DMARC1 and p), selecting optional tags (rua, ruf, adkim, aspf, sp, pct, fo), validating syntax/alignment and report routing, then publishing the generated TXT record at _dmarc.yourdomain with a staged monitoring-to-enforcement plan and ongoing report-driven tuning. Context and background: what a DMARC creator does and…

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…

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…

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…