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DMARC Lookup

DMARC Lookup will list DMARC records for a domain, DMARC, which stands for Domain-based Message Authentication, Reporting & Conformance, is an email authentication, policy, and reporting protocol

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Instead of directly asking for donations, I'm thrilled to offer you all nine of my books for just $9 on leanpub By grabbing this bundle you not only help cover my coffee, beer, and Amazon bills but also play a crucial role in advancing and refining this project. Your contribution is indispensable, and I'm genuinely grateful for your involvement in this journey!

Any private key value that you enter or we generate is not stored on this site, this tool is provided via an HTTPS URL to ensure that private keys cannot be stolen, for extra security run this software on your network, no cloud dependency

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About DMARC

DMARC has the following high-level goals:

• Allow Domain Owners to assert the preferred handling of authentication failures, for messages purporting to have authorship within the domain
• Allow Domain Owners to verify their authentication deployment.
• Reduce the amount of successfully delivered spoofed email.

DMARC policies are published by the Domain Owner, and retrieved by the Mail Receiver during the SMTP session, via the DNS. DMARC does not attempt to solve all problems with spoofed or otherwise fraudulent email.

A DMARC record is the record where the DMARC rulesets are defined. DMARC records follow the extensible tag-value syntax for DNS-based key records defined in DKIM. The DMARC record contains the policy. The DMARC record should be placed in your DNS. The TXT record name should be "_dmarc.yourdomain.com." where yourdomain.com is replaced with your actual domain name (or subdomain)

Common tags used in DMARC TXT records:

Tag	Purpose	Sample
v	Protocol version (Mandatory)	v=DMARC1
p	Policy for Domain (Mandatory)	p=quarantine
pct	% of messages subjected to filtering (Optional)	pct=20
rua	Reporting URI of aggregate reports (Optional)	rua=mailto:[email protected]
ruf	Reporting URI of forensic Information (Optional)	ruf=mailto:[email protected]
rf	Format to be used for message-specific forensic information reports (optional)	rf=afrf
aspf	Alignment mode for SPF (optional)	aspf=r
adkim	Alignment mode for DKIM (Optional)	adkim=r