DMARC
AssessTechniques
An email authentication policy that uses SPF and DKIM to define how receivers handle failed messages.
Why it's here
Placed in Assess: 3 article(s) of evidence from 2 source(s), led by security coverage, with 2 in the last 30 days. Confidence 45%.
Evidence (3)
- 4Hacker News·8/3/2026securityWhat DMARC Protects and What It Does Not
The article explains that DMARC is a narrow email authentication standard: it verifies whether the domain shown in the From address authorized the message through SPF or DKIM. It does not stop all phishing or spam, and its effectiveness depends on correct alignment and proper use of the underlying email authentication records.
- 6Hacker News·7/28/2026securityMost Company Domains Still Do Not Enforce DMARC
A scan of 67,336 company domains found that 68.4% either have no DMARC record or publish DMARC without enforcing quarantine or rejection. The report argues that the main bottleneck is moving from monitoring-only mode to enforcement, not simply publishing the record.
- 6Cloudflare Blog·6/16/2026product_launchCloudflare DMARC Management becomes generally available
Cloudflare says its DMARC Management product is now generally available with a redesigned dashboard to help customers reach full DMARC enforcement more easily. The update focuses on improving email authentication visibility and simplifying the path to stronger protection against spoofing and deliverability issues.