Online DMARC Generator

A DMARC generator that outputs ready DNS TXT records for domain authentication, guiding policy setup and reporting addresses.

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About This Tool

The DMARC generator accepts domain related inputs including the domain name, desired policy (none, quarantine, reject), and reporting addresses. It produces a correctly formatted DMARC DNS TXT record that aligns with DMARC specification.

It supports DKIM/ SPF alignment options adkim and aspf, rua and ruf addresses, and optional pct. It validates inputs and warns about common misconfigurations so that the generated record will be parseable by DNS.

Who benefits: SMBs, MSPs, and security teams implementing DMARC to reduce phishing and improve deliverability. It saves time by generating ready-to-paste DNS records and providing guidance on valid reporting addresses and syntax.

Unique value: guidance on alignment, real-time syntax checks, export-ready TXT value, and clear handling of edge cases such as missing rua or multiple destinations.

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How to Use

Provide inputs: domain name, policy, rua and ruf addresses, and optional pct and alignment values.
Choose alignment: set adkim and aspf to relaxed or strict as needed.
Generate record: tool constructs the DNS TXT value in the standard DMARC format.
Publish: copy the output and create or update the _dmarc.yourdomain.tld TXT record in your DNS manager.
Validate: test receive and review reports to confirm policy enforcement and delivery improvements.

Frequently Asked Questions

Find Quick Answers

What is DMARC and why generate records?

DMARC strengthens domain email authentication by aligning SPF and DKIM with the sender domain and providing reporting. Generating a DMARC TXT record enables policy enforcement and visibility into mail streams to reduce phishing and spoofing.

What inputs are required?

At minimum you provide domain name and a policy (none, quarantine, reject). Optional inputs include rua and ruf reporting addresses, and alignment controls (adkim, aspf) plus pct for policy application.

Can I test before publishing?

Yes. The tool validates syntax and shows a properly formatted TXT record. After publishing, monitor DMARC reports to verify that the policy is effective and adjust addresses or alignment as needed.

What if rua or ruf addresses are invalid?

Invalid addresses can cause reports to bounce or be undelivered. The tool flags invalid addresses and suggests corrections. It is best to use valid, monitored inboxes for rua and ruf.

Need to run multiple calculations?

Create a free account today to unlock unlimited daily runs, access advanced parameters, save your history, and request custom features.

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