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…
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…
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…
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)…
DKIM uses two keys to strengthen email authentication. If the same key were used to sign and verify emails, anyone could copy it and start sending fake messages. By separating the roles, DKIM ensures that: This is what prevents attackers from forging valid DKIM signatures. How DKIM Public and Private Keys Work Together Here’s how…
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…
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…
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…
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….
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…
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…
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…
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…
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…
Email is still the backbone of business communication—but only when your messages actually reach the inbox. If you’re using Zoho Mail and struggling with low open rates, emails landing in spam, or warnings about authentication, SPF and DKIM are not optional anymore—they’re essential. At DMARCReport, we work with organizations every day to fix email deliverability…
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…
