SPF & DMARC Record Analyzer

ℹ️ About Email Security Checker

Enter a domain name to fetch, inspect, and evaluate its active SPF and DMARC configurations.

🔒 SPF (Sender Policy Framework)

Active SPF TXT DNS Record:

Record Tags Breakdown:

Tag / Mechanism	Description

🔑 DMARC Policy Status

Active DMARC TXT DNS Record:

Record Policy Explanations:

Parameter	Description

Features

Why Check Email DNS Security?

Optimize your domain deliverability, secure mail verification nodes, and prevent address spoofing.

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Prevent Email Spoofing

Protect your brand by ensuring hackers cannot forge emails using your active domain address.

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Boost Deliverability

Proper SPF and DMARC settings prevent your outgoing emails from getting flagged by spam filters.

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Tag Breakdown

Read plain-text explanations for complex record tags (e.g. include, softfail, and reject policies).

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SPF Generator Wizard

Answer simple questions and let the wizard build a secure, validated SPF record automatically.

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DMARC Policy Wizard

Easily define monitoring (none), quarantine, or reject DMARC policies for your domain.

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Anycast DNS Queries

Queries are resolved in real-time from active authoritative servers to bypass local network DNS caching.

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FAQ

Frequently Asked Questions

Find quick answers to common questions regarding email security settings and DNS records.

SPF (Sender Policy Framework) is a DNS TXT record that lists all authorized servers permitted to send email on behalf of your domain.

DMARC (Domain-based Message Authentication, Reporting, and Conformance) is a protocol that uses SPF and DKIM to determine the authenticity of an email message and specifies action policies for failures.

Softfail (~all) tells receiving servers to flag unauthorized mail as suspicious but still deliver it, whereas Hardfail (-all) tells servers to reject unauthorized mail completely.

You must publish your DMARC record as a TXT DNS record with the host hostname set to "_dmarc.yourdomain.com".

SPF permits a maximum of 10 recursive DNS lookups (e.g. includes) to avoid DDoS attacks on DNS infrastructure. Exceeding this limit breaks SPF validation.