Sandworm Targets, Vehicle Hacks, Phishing Surge, Typo Impersonation

Sandworm Targets, Vehicle Hacks, Phishing Surge, Typo Impersonation

Here’s the fifth edition of the month. It revolves around the top cyber incidents that took place last week. Be it the Poland power grid cyberattack, or the “rn” typo trick used by hackers, the incidents hint towards one thing– increasing sophistication of the campaigns. The edition also talks about the Pwn2Own contest that revealed…

How to Create a TXT Record and Add It to DNS

How to Create a TXT Record and Add It to DNS

In today’s digital world, websites and email domains rely on the Domain Name System (DNS) to connect infrastructure, prove ownership, and secure communications. One of the most versatile tools in the DNS toolbox is the TXT record — a simple yet powerful type of DNS entry that carries text information used for domain verification, email…

How often should I run a DKIM test to maintain email deliverability?

How often should I run a DKIM test to maintain email deliverability?

Run continuous, automated DKIM monitoring with real‑time alerts at all times, run scheduled DKIM spot tests daily for high‑volume/frequently changing senders and weekly for stable low‑volume programs, and always test immediately before and after DNS/MTA changes and key rotations (hourly during active incidents). DKIM (DomainKeys Identified Mail) is a cryptographic signature that tells receiving servers…

The Complete DMARCReport Guide: Configuring DKIM with OpenDKIM on Your Postfix Mail Server

The Complete DMARCReport Guide: Configuring DKIM with OpenDKIM on Your Postfix Mail Server

Email authentication is more than just a best practice — it’s essential. As email threats continue to rise, weak authentication leaves your domain vulnerable to spoofing, phishing, and reputation damage. At DMARCReport, we believe every mail server owner should feel empowered to secure their infrastructure. One of the most impactful steps you can take is…

What are the security risks associated with a “no DMARC record found” result for my email domain?

What are the security risks associated with a “no DMARC record found” result for my email domain?

If your email domain has no DMARC record, attackers can freely spoof your domain to deliver convincing phishing and business email compromise (BEC), receiving servers won’t enforce a clear disposition for unauthenticated mail, you’ll have no visibility into abuse via DMARC reports, and your deliverability and brand reputation will degrade—especially with mailbox providers that now…

How does a required DKIM selector improve email security and deliverability?

How does a required DKIM selector improve email security and deliverability?

Requiring a DKIM selector improves email security and deliverability by enforcing deterministic key selection and verifiable domain-level authentication that supports safe key rotation, isolates sending streams and third parties, strengthens DMARC alignment, and increases receiver trust—leading to fewer spoofing opportunities, lower verification failure rates, and better inbox placement. Context and background DomainKeys Identified Mail (DKIM)…

Network Security Risks Facing Consumers and Businesses

Small businesses face a harsh reality: 79% have experienced at least one cyberattack in the past five years. These numbers show why companies and organizations need better protection against various security vulnerabilities. The financial toll hits hard when security breaches occur. Small businesses lose up to $1,000 per minute of downtime, while enterprise organizations lose…

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…

Data Risk, Fortinet Trouble, CTO Resigns, AI Simulations

Data Risk, Fortinet Trouble, CTO Resigns, AI Simulations

This is the third edition of the month, and here are the top 4 cyber mishaps that you must know about. Last week, Marks & Spencer’s CTO quit following a major cyber mishap. There was bad news for both Fortinet and ChatGPT Health. However, amidst this bleak landscape, experts have found a silver lining: cyberattack…

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…

How to Tell if a Website Is Secure: The Ultimate Guide by DMARCReport

How to Tell if a Website Is Secure: The Ultimate Guide by DMARCReport

In today’s digital world, we rely on websites for everything — from banking and shopping to communicating with friends and accessing critical business resources. While the internet brings immense convenience, it also presents significant risks. Cybercriminals are constantly devising new ways totrick unsuspecting users into revealing sensitive information or compromising their devices.For this reason, it’s…

Good–Better–Best Pricing for MSPs: Why Tiered Packages Drive Better Decisions

Good–Better–Best Pricing for MSPs: Why Tiered Packages Drive Better Decisions

Do you present prospects with multiple service options—or a single package they either accept or walk away from? Tiered pricing often sparks debate among MSPs. Some see it as unnecessary. Others worry it complicates conversations. But when you step back and look at how buyers actually make decisions, good–better–best pricing isn’t a problem at all….

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…