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…

What is a 550 5.7.0 local policy violation, and how to solve it?

What is a 550 5.7.0 local policy violation, and how to solve it?

Sending bulk emails certainly means reaching a wider audience, but what if your emails fail to even reach the recipients? Such problems often occur even when you believe you are doing everything right.  The reason for this error could be hidden email-policy checks running in the background that are causing your emails to fail and…

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…

Learning to analyze an email for security and deliverability

Learning to analyze an email for security and deliverability

Emails were never designed with security in mind, which is precisely why they require cautious use and integration with third-party tools. Email analysis is a practical approach that checks email authentication results, sender identity, routing paths, and attachments to ensure the message is safe to open and engage with. You can manually analyze emails for…

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…

Credential Theft, Phishing warning, Instagram Alert, Bettermement Breach

Credential Theft, Phishing warning, Instagram Alert, Bettermement Breach

The third edition of the month revolves around key cybersecurity incidents. Cyber mishaps this week include a breach of Facebook login credentials, phishing attacks that exploit email routing gaps, fake Instagram password reset emails that sent a panic wave among the Indian user base, and a customer data breach at Betterment.  Facebook login credentials accessed…

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…

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…