---
title: "無料 SPF レコードルックアップツール | DMARC Report"
description: "任意のドメインの SPF レコードを即座に調べられます。生の TXT レコードを確認し、DNS ルックアップ数を数え、ネストされた include を展開し、RFC 7208 違反を指摘します。無料、登録不要。"
image: "https://dmarcreport.com/images/og-default.png"
canonical: "https://dmarcreport.com/ja/tools/spf-record-lookup/"
---

## SPF レコードルックアップとは?

**SPF レコードルックアップは、ドメインの頂点（apex）に公開された Sender Policy Framework の TXT レコードを DNS に問い合わせます。** このレコードは、どの IP アドレス、サーバー、第三者サービスがそのドメインに代わってメールを送信する権限を持つかを宣言します。受信メールサーバーは、送信者の身元を検証するために、すべての受信 SMTP トランザクションでこのルックアップを実行します。[SPF とは](/ja/spf-toha/)と、その仕組みについて詳しくご覧ください。

このツールは単純な DNS クエリを超えます。すべての `include`、`redirect`、ネストされたメカニズムを再帰的に展開し、[RFC 7208](https://datatracker.ietf.org/doc/html/rfc7208) の上限である 10 に対して DNS ルックアップの総数を数え、構文エラー、ボイドルックアップ、非推奨のメカニズムを指摘します。構文に絞ったスキャンには、当社の [SPF チェッカー](/ja/tools/spf-checker/)をお試しください。

## SPF と DMARC の健全性を監視しましょう

DMARC Report は、すべてのドメインにわたって SPF、DKIM、DMARC を監視します。認証結果を確認し、強制運用へと進みましょう。

[無料トライアルを開始](https://app.dmarcreport.com/signup?plan=free)

## 迅速で信頼性が高い

![G2 Leader - DMARC](https://media.mailhop.org/dmarcreport/images/g2-badges/DMARC_Leader_Leader.png)

Rated 4.8/5 on G2 · 469 verified reviews

![G2 Momentum Leader - DMARC](https://media.mailhop.org/dmarcreport/images/g2-badges/DMARC_MomentumLeader_Leader.png)

DG

Dave G.

Owner

5/5

### "DMARC Report has been invaluable in fixing email deliverability issues for our clients"

DMARC Report dashboard allows us to see easily what is compliant and what isn't compliant so we can quickly fix issues.

9/27/2022Verified on G2

AL

Antoine L.

5/5

### "Incredible Service for an affordable price"

The software is easy to use and has also an entry friendly free plan up to 1,000 mails per month.

9/12/2023Verified on G2

ZK

Zunaid K.

Director

5/5

### "Essential tool for email delivery"

This tool helps us to implement DMARC reporting for our domains in an easy to use manner.

8/8/2024Verified on G2

[Read all 469 reviews on G2 →](https://www.g2.com/products/dmarc-report/reviews)

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```

```json
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```

```json
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```

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```