What is the recommended DNS record syntax for a DMARC record used with Office 365?

What is the recommended DNS record syntax for a DMARC record used with Office 365?

ByBrad Slavin

Publish a TXT record at _dmarc.yourdomain.com with the value “v=DMARC1; p=none; rua=mailto:rua@dmarcreport.com; ruf=mailto:ruf@dmarcreport.com; fo=1; pct=100; adkim=r; aspf=r; sp=none” to begin DMARC monitoring for Office 365 safely and effectively. DMARC (Domain-based Message Authentication, Reporting and Conformance) builds on SPF and DKIM to tell receivers how to handle messages that fail authentication. In an Office 365 tenant,…

Monitor, Analyze, And Protect: A Free DMARC Analyzer Solution

Monitor, Analyze, And Protect: A Free DMARC Analyzer Solution

ByBrad Slavin

You can monitor, analyze, and protect your domain for free by implementing SPF, DKIM, and an initial p=none DMARC record with RUA/RUF pointing to DMARCReport, then using DMARCReport’s free analyzer to visualize alignment, tune policies toward quarantine/reject, handle third‑party senders, and integrate alerts and privacy controls at scale. Modern email authentication hinges on three open…

Email-Borne Insurance Scams: A Complete Guide to Understanding, Preventing & Securing Your Domain

Email-Borne Insurance Scams: A Complete Guide to Understanding, Preventing & Securing Your Domain

ByBrad Slavin

In today’s highly digital world, email remains one of the most essential communication channels for businesses — especially in the insurance industry. Unfortunately, as the industry embraces digital transformation, it also becomes an increasingly attractive target for cybercriminals leveraging email to defraud companies and unsuspecting policyholders alike. Email-borne insurance scams aren’t just an annoyance. When…

How to set up SPF and DKIM for Autotask

How to set up SPF and DKIM for Autotask

ByBrad Slavin

Companies rely on Autotask for sending emails about ticket updates, workflow alerts, invoices, system notifications, and more. Many of these emails are time and response-sensitive, which is why it’s important that domain owners integrate SPF, DKIM, and DMARC for their Autotask accounts. When these emails are not authenticated, receiving mailbox providers may treat them as…

How can I set up DMARC for my Google Workspace domain without breaking delivery?

How can I set up DMARC for my Google Workspace domain without breaking delivery?

ByBrad Slavin

To set up DMARC for your Google Workspace domain without breaking delivery, publish SPF (v=spf1 include:_spf.google.com ~all), generate and enable 2048‑bit DKIM in the Google Admin console, start with DMARC at p=none with rua/ruf to DMARCReport for monitoring, fix and align all third‑party senders via DKIM or aligned SPF, then progressively move to quarantine and…

France Post Targeted, Romanian Waters Attacked, WhatsApp GhostPairing Threat

France Post Targeted, Romanian Waters Attacked, WhatsApp GhostPairing Threat

ByBrad Slavin

This is the fourth edition of the month, and we have curated the top three cyber incidents that you must know about. We will begin the bulletin with the alleged threat attack on a French post office. Next, we will discuss the recent cyberattack on Romanian waters and try to understand the extent of damage…

DMARC: A Comprehensive Guide to Protect Your Domain — by DMARCReport

DMARC: A Comprehensive Guide to Protect Your Domain — by DMARCReport

ByBrad Slavin

Email security is among the most critical aspects of modern digital communications. Every year, organizations lose money, time, and reputation due to email fraud, phishing attacks, and domain spoofing. Studies show that even small breaches can cost businesses tens of thousands of dollars, while larger enterprises can lose millions per incident. With email-based threats rising…

How can I get started reading DMARC reports to understand delivery problems?

How can I get started reading DMARC reports to understand delivery problems?

ByBrad Slavin

Start by publishing a DMARC TXT record with aggregate (RUA) and optional forensic (RUF) destinations, ingesting those reports into a parser like DMARCReport, and then reading the aggregate XML fields—policy, alignment, SPF/DKIM results, source IP, and message counts—to correlate failures with your SPF/DKIM/DNS configuration and remediate misconfigurations before gradually tightening policy. DMARC is an authentication…

Understanding DMARC RFC: A Comprehensive Guide by DMARCReport

Understanding DMARC RFC: A Comprehensive Guide by DMARCReport

ByBrad Slavin

In today’s digital world, email remains one of the most powerful communication channels, but it is also one of the most abused. Every day, millions of malicious emails are sent to deceive recipients — from phishing to brand spoofing to targeted business email compromise (BEC). As these attacks evolve, so too must our defenses. At…

How long after publishing a DMARC DNS record should I expect to see effects on delivery?

How long after publishing a DMARC DNS record should I expect to see effects on delivery?

ByBrad Slavin

You should expect initial DMARC-driven delivery effects as soon as DNS caches refresh your new TXT record—typically within 5–60 minutes, broad enforcement by major mailbox providers within 1–24 hours, and full stabilization (including report-based visibility) within 24–72 hours. DMARC is evaluated in real time on each message, but its input—the DMARC TXT record at _dmarc.yourdomain—travels…