DMARC, or Domain-based Message Authentication, Reporting, and Conformance, is one of the most crucial security protocols in your email authentication setup. As it builds on SPF and DKIM, it checks whether an email is genuinely aligned with the domain it claims to come from and, if not, how it should be handled. This sounds simple,…
The best tools for bulk DMARC lookup across hundreds of domains are a mix of commercial SaaS platforms (e.g., DMARC Report, dmarcian, EasyDMARC, PowerDMARC, Valimail Monitor, MXToolbox, WhoisXML API) and high-performance open-source utilities (e.g., massdns, ZDNS, ProjectDiscovery dnsx) combined with scripting libraries (Python dnspython, Go miekg/dns) for automation and validation at scale. Bulk DMARC lookup…
As cyber threats escalate in frequency and sophistication, companies can no longer treat security as an afterthought. A robust cybersecurity posture demands proactive measures, and one of the most powerful among them is penetration testing. In this article, DMARCReport walks you through how penetration testing can significantly bolster your defenses — as well as the…
Compared to MXToolbox, Valimail, and DMARCian, DMARC Analyzer provides stronger guided onboarding and automated validation than MXToolbox and DMARCian but less end-to-end automation than Valimail; in practice, organizations tend to reach p=reject fastest with Valimail or DMARC Report, steadily with DMARC Analyzer, slower with DMARCian, and slowest with MXToolbox. DMARC setup is notoriously cross-functional—touching DNS,…
In our recent webinar titled “From Setup to Success: Secure Your Emails with DMARCReport,” we explored essential aspects of email security, with a deep dive into authentication protocols and best practices. The session was rich in content and attracted many participants; yet, we couldn’t cover all questions during the live Q&A. In this post, DMARCReport…
The best DMARC checker depends on your goals: choose dmarcian for deep DMARC-specific analytics and guided rollout, MXToolbox for fast diagnostics and budget-friendly monitoring, Proofpoint for enterprise-scale enforcement with threat intelligence, and consider DMARC Report to bridge gaps with scalable parsing, automation, and cost efficiency across SMB to multi-domain enterprises. DMARC (Domain-based Message Authentication, Reporting…
Email spoofing remains one of the common tricks used to impersonate trusted senders, targeting iCloud users. In a situation where custom domains connected to Apple Mail remain unauthenticated, an attacker can send a fraudulent message that appears legitimate at the same time as a user’s authenticated session. This poses a risk of data exposure, combined…
If you’ve ever managed a domain or hosted a website, you’ve likely encountered DNS records — but not all DNS records are created equal. Two of the most foundational types are the A record and the AAAA record. On the surface, both serve the same essential purpose: they map a domain name (like example.com) to…
For small businesses with minimal IT staff, the best DMARC record generators are GUI-based wizards—especially DMARC Report’s DMARC Wizard—alongside dmarcian, EasyDMARC, PowerDMARC, MXToolbox, and Google Admin Toolbox, because they combine pre-validated records, SPF/DKIM alignment guidance, and optional one‑click DNS publishing to minimize setup time and errors. Getting DMARC right delivers immediate value—stopping spoofing/phishing and improving…
Money is not the only thing you part with while placing an online order. As a buyer, you are also required to share personal information such as your name, date of birth, location, social security number, and so on. The personal data that you share over email to complete the checkout process is called PII…
In today’s digital-first world, data isn’t just an asset — it’s the foundation of business value, reputation, and trust. Unfortunately, data loss isn’t a hypothetical concern; for many companies, it’s a serious risk that can mean the difference between thriving and disaster. According to industry estimates, the average worldwide cost of a major data loss…
Hello people! We are back once again with the last edition of November. In the previous week, cybercrooks attempted to steal the data and peace of mind of hundreds and thousands of victims. We are here to share the top 3 head-turning incidents of the past week with you so that you can stay well-versed…
At DMARCReport, we take email and network security seriously. While our primary focus is on DMARC, SPF, and DKIM, we also understand the broader threat landscape — including Distributed Denial-of-Service (DDoS) attacks. In this comprehensive guide, we walk you through the 12 most common types of DDoS attacks, their underlying mechanisms, and why understanding them…
As DMARCReport, we closely monitor threat trends that directly impact email security — especially those that exploit human behavior, credential theft, and social engineering. Verizon’s 2021 Data Breach Investigations Report (DBIR) provides a wealth of insights, many of which align closely with the risks we help our clients mitigate. Below are ten key takeaways, along…
At DMARCReport, we understand that data is one of your organization’s most precious assets. Whether it’s customer information, financial records, or proprietary business data — a leak can be devastating. The risk of data breaches, accidental exposure, or malicious insider threats is real, and in today’s world, protecting your data isn’t just a technical necessity,…
DMARC aggregate (RUA) reports help teams see who is sending on their behalf, whether SPF and DKIM align, and where spoofing attempts originate. The same XML feed can also include data points—source IPs, sending domains, and counts—that intersect with privacy obligations. This article gives US teams a practical path to keep the security value of…
