Web・ネットワークツールEmail Deliverability

DMARC Record Checker & Validator

Comply with Google and Yahoo 2024 bulk sender email authentication requirements by verifying your domain's DMARC policy record.

Queries public DNS records.
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DMARC Record Checker & Validator の使い方

1

Enter Domain

Input your sending domain name.

2

Query DMARC

Look up `_dmarc.yourdomain.com` TXT record.

3

Analyze Policy

Review enforcement policy (none, quarantine, or reject) and reporting tags.

DMARC Record Checker & Validator について

Fetches TXT records at the `_dmarc.` subdomain prefix, verifying RFC 7489 key-value tags and policy enforcement parameters.

対応フォーマット

DMARCDNS TXT

利用制限

  • Requires public DNS

主な機能

  • Google & Yahoo 2024 compliance check
  • Policy evaluation: p=none, p=quarantine, p=reject
  • Subdomain policy (sp=) and percentage (pct=) verification
  • Reporting mailbox (rua= and ruf=) syntax checks

よくある質問

As of 2024, Google and Yahoo reject or spam-flag bulk emails from domains that lack valid SPF, DKIM, and DMARC authentication.
DMARC Record Checker – Validate DMARC Policies Online | Toolxilla