Life & fun · February 20, 2024
DMARC Checker
Verify your DMARC, DKIM, and SPF settings with our free checker. Prevent bad actors from impersonating your domain and improve email deliverability.
DMARC Checker launched on February 20, 2024 with 70 votes, #863 of 3,962 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 2 years on.
In plain words
DMARC Checker is a tool for verifying DMARC (Domain-based Message Authentication, Reporting, and Conformance) records. It helps users check whether their email domain has proper authentication configured. The tool is designed for anyone managing email security for a domain, including IT administrators and business owners who want to verify their email authentication setup is working correctly.
written from the facts on this page · September 2026
From the sources
DKIM (pronounced dee-kim ) is a way to digitally sign emails, ensuring they are authorized by the owner of a specific domain and haven’t been tampered with during transit. Here’s how it works: However, DKIM alone doesn’t stop scammers from spoofing an email’s From address and sending messages from unauthorized servers. For instance, a scammer could attach a valid DKIM signature for domain spoofed-example.com to the email while using [email protected] as the sender address. Despite this, the email would still pass a DKIM check. SPF verifies the domain from the email’s Return-Path (also known as MAIL FROM, Envelope From, or bounce address), which might not match the domain displayed in the…from dmarcchecker.app
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