New Laposte Email Rules: What Senders Need to Know About SPF, DKIM, DMARC
Laposte.net is one of France’s leading email service providers serving millions of users. It introduced mandatory email authentication requirements starting in September 2025.
News & Knowledge
Understanding CISA BOD 25-01 DMARC Requirements for Microsoft 365 and Google Workspace
In the Secure Cloud Business Applications project, BOD 25-01 provides secure baselines, including DMARC, for configuring Microsoft 365 and Google Workspace in the United States’ Federal Civilian Executive Branch.
Hosting Dynamic MTA-STS Policies for Multiple Domains with Cloudflare Workers
Requests about how to set up MTA-STS policies with Cloudflare are on the rise, so here's a guide that walks you through publishing MTA-STS policies for multiple domains with Cloudflare.
DMARCbis vs. DMARC: What’s Changing?
The DMARC specification was first published in 2012, and the Internet Engineering Task Force is proposing changes in DMARCbis. The DMARC working group has been discussing updates to the DMARC specification so it’s more flexible and easier to understand and deploy.
Microsoft DMARC Error Codes for Bulk Senders: Troubleshooting Guide
In May, Microsoft began enforcing its DMARC requirements for bulk senders emailing outlook.com, hotmail.com and live.com mailboxes. Find out how to solve the error codes you're getting from Microsoft.
dmarcian’s Sustainable Values
One of the factors that drives dmarcian in our pursuit to bring DMARC to everyone is the community we build around our values. By investing time and energy into ideas bigger than email security, we are able to connect with and contribute to the greater good. Everything we do is centered around safety, sustainability and collaboration, and we’re proud to say that we don’t do it alone.
New Zealand Government Secure Email Framework with Mandatory DMARC
The New Zealand Government has introduced a new framework, “Secure Government Email Common Implementation Framework,” which outlines technical guidance and best practices, like DMARC, for protecting email systems against phishing.
2024 FBI Internet Crime Report: 33% Increase in Losses Fueled by Phishing, Investment Fraud, Ransomware
The FBI’s Internet Crime Complaint Center has released the 2024 Internet Crime Report. 2024 Internet Crime Trends: Phishing and spoofing lead record-breaking losses.
The Importance of Sources in DMARC
dmarcian provides you with a brief overview of a source's capabilities, links to any publicly available resources on SPF and DKIM configuration and any other useful details on that source.
2025 Verizon Data Breach Investigations Report: Third-party Breaches Double
Verizon has released the eighteenth edition of their Data Breach Investigations Report (DBIR) covering cyber incidents taking place between November 1, 2023, and October 31, 2024, and representing victims from 139 countries.