Yes—DMARC explicitly evaluates SPF and DKIM authentication results and verifies their alignment with the message’s Header From domain, passing if at least one of SPF or DKIM both authenticates and aligns per your DMARC policy. DMARC (Domain-based Message Authentication, Reporting, and Conformance) exists to connect message authentication to domain identity as shown to recipients: the…
As DNS users, domain administrators, and website operators know all too well: DNS configuration often feels like walking a tightrope. A small misconfiguration can mean your users can’t reach your site — or your email goes missing. Two DNS record types that are often sources of confusion are CNAME and ALIAS records. They can look…
By DMARCReport When you register a domain name — say mywebsite.com — you’re not done yet. To get the domain to actually load your website, or allow email to be delivered, you need to configure the Domain Name System (DNS) appropriately. Think of DNS as the internet’s “phone book.” Instead of human-readable domain names, computers…
Implement DMARC for multiple domains and subdomains by standardizing a DNS template (SPF, DKIM, DMARC), inventorying all sending services, using parent-level inheritance with the DMARC sp tag where appropriate, centralizing rua/ruf reporting, rolling out p=none then gradually enforcing per domain (quarantine → reject) based on report-driven confidence, automating DNS and DKIM key management via APIs/IaC,…
Introduction At DMARCReport, we’ve always believed that email authentication and brand trust should go hand in hand. That’s why the recent update from Google — enabling support for Common Mark Certificate (CMC) under Brand Indicators for Message Identification (BIMI) — is big news for businesses of all sizes. If you’re sending emails to clients, subscribers…
If you run a small business, email marketing is one of the easiest ways to stay in touch with your customers, promote offers, and grow sales. But building and maintaining your own email system takes time and technical know-how. And most founders simply don’t have that. Luckily, third-party email services can help. Platforms like Mailchimp…
You can use a DMARC Analyzer—specifically DMARCReport—by publishing a DMARC record that sends RUA/RUF reports to DMARCReport, then using its dashboard, alignment checks, alerts, and policy controls to identify spoofing sources quickly and move from monitoring (p=none) to enforcement (quarantine/reject). Context and background Email domain spoofing happens when attackers send messages with your domain in…
When managing a domain, one of the choices you’ll face is how to configure your DNS (Domain Name System) records. Two of the most important and commonly confused record types are A records and Alias records. Though they may seem similar, they behave differently — and choosing the right one can make a big difference…
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…
