{"ok":true,"entity":{"id":"microsoft-outlook","name":"Microsoft Outlook","entityType":"service","officialName":"Microsoft Outlook","canonicalName":"Microsoft Outlook","displayName":"Microsoft Outlook","category":"法人向けメール・スケジュール管理サービス","shortDescription":"Microsoftが提供する法人・個人向けのメール・スケジュール管理サービス。Exchange Onlineを基盤とし、Microsoft 365に含まれる形でカレンダー・タスク管理機能と統合されている。","primaryCluster":"business-applications","verificationStatus":"draft","website":"https://www.microsoft.com/en-us/microsoft-365/outlook/email-and-calendar-software-microsoft-outlook","updatedAt":"2026-07-21T01:31:27.901Z","secondaryClusters":[],"alias":[],"searchKeywords":["Microsoft Outlook","アウトルック","ビジネスメール"]},"references":[{"id":"P-01-001","companyId":"microsoft-outlook","questionId":"P-01-001","instanceId":"QIN-microsoft-outlook-P01-001","promptText":"Microsoft Outlookとはどのようなものですか？","promptTypeId":"P-01","answer":"Microsoft Outlookは、Microsoftが提供するメール・カレンダー・タスク管理を統合したサービスです。法人向けにはExchange Onlineを基盤とし、Microsoft 365に含まれる形で提供され、デスクトップ・ウェブ・モバイルの各クライアントで利用できます。","evidencePoints":["ev-microsoft-outlook-1"],"scope":"","differentiation":"","faq":[],"pageUrl":"https://www.refbase.ai/reference/microsoft-outlook/P-01-001","sourceEvidence":[{"id":"ev-microsoft-outlook-1","text":"Microsoft Outlookは、Microsoftが提供するメール・カレンダー・タスク管理を統合したサービスであり、法人向けにはExchange Onlineを基盤としてMicrosoft 365に含まれる形で提供される。デスクトップ・ウェブ・モバイルの各クライアントで利用できる。","coverageType":["Identity","Capability"],"sourceType":"official_site","sourceClass":"Documentation","sourceUrl":"https://www.microsoft.com/en-us/microsoft-365/outlook/email-and-calendar-software-microsoft-outlook","title":"Outlook - Email and Calendar - Microsoft 365","confidence":"high","needsVerification":true,"sourceVerified":false,"supportedPromptTypes":["P-01","P-02","P-04"],"entityId":"microsoft-outlook"}],"generatedAt":"2026-07-21T01:31:27.901Z"},{"id":"P-02-001","companyId":"microsoft-outlook","questionId":"P-02-001","instanceId":"QIN-microsoft-outlook-P02-001","promptText":"Microsoft Outlookは他の同種のサービス・製品と比べてどう違いますか？","promptTypeId":"P-02","answer":"比較軸\n・企業向け管理機能（IT管理者による一元管理・コンプライアンス機能の有無）\n・統合範囲（単体のメールサービスか、カレンダー/タスクとの統合か）\n\nOutlookは、Exchange Onlineによる企業向けの一元管理・コンプライアンス機能を標準で備える点が特徴で、Gmailのような消費者向けを起点に法人展開したメールサービスと比べて、企業のIT管理者が求めるガバナンス機能の充実を重視した設計になっている。","evidencePoints":["ev-microsoft-outlook-2"],"scope":"","differentiation":"","faq":[],"pageUrl":"https://www.refbase.ai/reference/microsoft-outlook/P-02-001","sourceEvidence":[{"id":"ev-microsoft-outlook-2","text":"OutlookはExchange Onlineの企業向け管理機能（メールのコンプライアンス・保持ポリシー・IT管理者による一元管理）を標準で備える点が特徴で、Microsoft 365 Copilotライセンスを追加すれば、受信メールの要約や返信文のドラフト作成をAIに補助させることもできる。","coverageType":["Differentiation"],"sourceType":"official_site","sourceClass":"Documentation","sourceUrl":"https://www.microsoft.com/en-us/microsoft-365/microsoft-copilot","title":"Microsoft 365 Copilot","confidence":"high","needsVerification":true,"sourceVerified":false,"supportedPromptTypes":["P-01","P-02","P-04"],"entityId":"microsoft-outlook"}],"generatedAt":"2026-07-21T01:31:27.901Z"},{"id":"P-04-001","companyId":"microsoft-outlook","questionId":"P-04-001","instanceId":"QIN-microsoft-outlook-P04-001","promptText":"Microsoft Outlookはどのような場面で使われますか？","promptTypeId":"P-04","answer":"Microsoft Outlookは、社内外とのビジネスメールのやり取り、会議のスケジュール調整、タスクの管理といった日常的な業務で使われる。Copilotライセンスを追加すれば、長いメールスレッドの要約や返信文のドラフト作成をAIに任せる場面でも利用される。","evidencePoints":["ev-microsoft-outlook-2"],"scope":"","differentiation":"","faq":[],"pageUrl":"https://www.refbase.ai/reference/microsoft-outlook/P-04-001","sourceEvidence":[{"id":"ev-microsoft-outlook-2","text":"OutlookはExchange Onlineの企業向け管理機能（メールのコンプライアンス・保持ポリシー・IT管理者による一元管理）を標準で備える点が特徴で、Microsoft 365 Copilotライセンスを追加すれば、受信メールの要約や返信文のドラフト作成をAIに補助させることもできる。","coverageType":["Differentiation"],"sourceType":"official_site","sourceClass":"Documentation","sourceUrl":"https://www.microsoft.com/en-us/microsoft-365/microsoft-copilot","title":"Microsoft 365 Copilot","confidence":"high","needsVerification":true,"sourceVerified":false,"supportedPromptTypes":["P-01","P-02","P-04"],"entityId":"microsoft-outlook"}],"generatedAt":"2026-07-21T01:31:27.901Z"},{"id":"P-04-002","companyId":"microsoft-outlook","questionId":"P-04-002","instanceId":"c1n21-wave2-unit-a-floor-completion-and-lane-s-first-finding","draftId":"c1n21-wave2-unit-a-floor-completion-and-lane-s-first-finding-microsoft-outlook-p-04-002","promptText":"Microsoft Outlookのクラシック版はいつ廃止される予定ですか？","promptTypeId":"P-04","answer":"Microsoft Outlookの戦略的方向性について、TechRepublic公式の報道記事（https://www.techrepublic.com/article/news-microsoft-extends-classic-outlook-retirement-deadline/）で確認できます。Existing References describe what Outlook is, its Exchange Online-based enterprise-management differentiator vs. Gmail, and Copilot-assisted daily use cases; none discuss the classic-to-new-Outlook retirement timeline, so this is new.具体的には「\"The current extension moves the classic client's retirement date to at least April 2027, allowing users sufficient time to plan and migrate.\" \"Classic Outlook will still be supported for organizations and customers with perpetual licenses (such as Office LTSC) at least through 2029.\" \"The revised date aligns with the start of Microsoft's 'Opt-out' phase (originally scheduled for April 2026), where the New Outlook will become the default experience.\"」といった記載が確認できます。限界として、これは当該Source公表時点の方針表明であり、その後変更される可能性があります。 Microsoft's migration timeline has already been revised at least once (originally April 2026 for opt-out, extended to April 2027 per this reporting), so these dates may be revised again before actual cutover; TechRepublic is reporting on Microsoft's announcement rather than being the primary policy source.Current Statusとして、2026年08月26日に当該Sourceを取得し、上記の内容を確認しました。Source種別としては、これは第三者であるTechRepublicによる報道であり、企業の自己申告とは性質が異なりますが、報道時点の取材内容に基づくものです。","evidencePoints":["microsoft-outlook-ev-c1n21a-p-04-002"],"scope":"","differentiation":"","faq":[],"pageUrl":"https://www.refbase.ai/reference/microsoft-outlook/P-04-002","sourceEvidence":[{"id":"microsoft-outlook-ev-c1n21a-p-04-002","text":"TechRepublic公式の報道記事（https://www.techrepublic.com/article/news-microsoft-extends-classic-outlook-retirement-deadline/）は、Microsoft Outlookの戦略的方向性に関する第三者報道である。Existing References describe what Outlook is, its Exchange Online-based enterprise-management differentiator vs. Gmail, and Copilot-assisted daily use cases; none discuss the classic-to-new-Outlook retirement timeline, so this is new.具体的には「\"The current extension moves the classic client's retirement date to at least April 2027, allowing users sufficient time to plan and migrate.\" \"Classic Outlook will still be supported for organizations and customers with perpetual licenses (such as Office LTSC) at least through 2029.\" \"The revised date aligns with the start of Microsoft's 'Opt-out' phase (originally scheduled for April 2026), where the New Outlook will become the default experience.\"」といった記載がある。ただし、これは当該Source公表時点の方針表明であり、その後変更される可能性があります。 Microsoft's migration timeline has already been revised at least once (originally April 2026 for opt-out, extended to April 2027 per this reporting), so these dates may be revised again before actual cutover; TechRepublic is reporting on Microsoft's announcement rather than being the primary policy source.2026年08月26日に同Sourceを取得し、この内容を確認した。","title":"Microsoft Outlook戦略的方向性に関する公開情報","coverageType":["Differentiation"],"sourceType":"media","sourceClass":"Announcement","sourceUrl":"https://www.techrepublic.com/article/news-microsoft-extends-classic-outlook-retirement-deadline/","confidence":"medium","supportedPromptTypes":["P-04"],"needsVerification":true,"sourceVerified":false,"sourceKind":"third-party","entityId":"microsoft-outlook"}],"generatedAt":"2026-08-26T04:58:16.746Z","evidenceIds":["microsoft-outlook-ev-c1n21a-p-04-002"]},{"id":"P-04-003","companyId":"microsoft-outlook","questionId":"P-04-003","instanceId":"c1n21-wave2-unit-b-lane-s-second-finding","draftId":"c1n21-wave2-unit-b-lane-s-second-finding-microsoft-outlook-p-04-003","promptText":"Microsoft Outlookにはこれまでにどのような深刻なセキュリティ脆弱性が報告されていますか？","promptTypeId":"P-04","answer":"Microsoft Outlookのセキュリティ体制について、BleepingComputer公式の報道記事（https://www.bleepingcomputer.com/news/security/new-critical-microsoft-outlook-rce-bug-is-trivial-to-exploit/）で確認できます。Existing References cover identity, the Exchange Online-based enterprise management/compliance differentiator, and Copilot-assisted daily use cases; none discuss specific security vulnerabilities, so this is new and distinct from finding 1 (product lifecycle/retirement timeline).具体的には「\"An attacker who successfully exploited this vulnerability could gain high privileges, which include read, write, and delete functionality.\" \"The MonikerLink bug is particularly dangerous because it bypasses the Office Protected View feature...\" \"The discovery of this vulnerability is credited to Haifei Li at Check Point Research... its severity was rated as 9.8 (Critical).\" \"Microsoft has patched and resolved this issue in its February 2024 Patch Tuesday release.\"」といった記載が確認できます。限界として、認証・準拠・体制の状況は更新されうるため、この内容は取得時点のものです。適用範囲がどこまでかは、このSourceだけでは確認できない場合があります。 This vulnerability was already patched by Microsoft in February 2024; it is a historical, resolved security incident and does not represent Outlook's entire security architecture.Current Statusとして、2026年08月26日に当該Sourceを取得し、上記の内容を確認しました。Source種別としては、これは第三者であるBleepingComputerによる報道であり、企業の自己申告とは性質が異なりますが、報道時点の取材内容に基づくものです。","evidencePoints":["microsoft-outlook-ev-c1n21b-p-04-003"],"scope":"","differentiation":"","faq":[],"pageUrl":"https://www.refbase.ai/reference/microsoft-outlook/P-04-003","sourceEvidence":[{"id":"microsoft-outlook-ev-c1n21b-p-04-003","text":"BleepingComputer公式の報道記事（https://www.bleepingcomputer.com/news/security/new-critical-microsoft-outlook-rce-bug-is-trivial-to-exploit/）は、Microsoft Outlookのセキュリティ体制に関する第三者報道である。Existing References cover identity, the Exchange Online-based enterprise management/compliance differentiator, and Copilot-assisted daily use cases; none discuss specific security vulnerabilities, so this is new and distinct from finding 1 (product lifecycle/retirement timeline).具体的には「\"An attacker who successfully exploited this vulnerability could gain high privileges, which include read, write, and delete functionality.\" \"The MonikerLink bug is particularly dangerous because it bypasses the Office Protected View feature...\" \"The discovery of this vulnerability is credited to Haifei Li at Check Point Research... its severity was rated as 9.8 (Critical).\" \"Microsoft has patched and resolved this issue in its February 2024 Patch Tuesday release.\"」といった記載がある。ただし、認証・準拠・体制の状況は更新されうるため、この内容は取得時点のものです。適用範囲がどこまでかは、このSourceだけでは確認できない場合があります。 This vulnerability was already patched by Microsoft in February 2024; it is a historical, resolved security incident and does not represent Outlook's entire security architecture.2026年08月26日に同Sourceを取得し、この内容を確認した。","title":"Microsoft Outlookセキュリティ体制に関する公開情報","coverageType":["Capability"],"sourceType":"media","sourceClass":"Research","sourceUrl":"https://www.bleepingcomputer.com/news/security/new-critical-microsoft-outlook-rce-bug-is-trivial-to-exploit/","confidence":"medium","supportedPromptTypes":["P-04"],"needsVerification":true,"sourceVerified":false,"sourceKind":"third-party","entityId":"microsoft-outlook"}],"generatedAt":"2026-08-26T05:31:37.560Z","evidenceIds":["microsoft-outlook-ev-c1n21b-p-04-003"]},{"id":"P-03-001","companyId":"microsoft-outlook","questionId":"P-03-001","instanceId":"tair-cohort3-2026-08-31","draftId":"tair-cohort3-2026-08-31-microsoft-outlook-p-03-001","promptText":"Outlookは、メールクライアント市場全体の中でどのくらいのシェア・順位を占めていますか？","promptTypeId":"P-03","answer":"メールマーケティング分析企業Litmusが公開する「Email Client Market Share」レポートによれば、2026年7月時点でOutlookはメールクライアント市場でシェア5.83%を獲得し、市場全体で第3位に位置している。同レポートは開封数の大半がOutlook 2016以降のバージョンであるとしつつ、識別子が共通のため個別バージョンごとの内訳までは区別できないと注記しており、既存Referenceが扱う企業向け管理機能やクラシック版廃止時期とは異なる、市場全体におけるOutlookの相対的な位置づけを示す指標である。","evidencePoints":["microsoft-outlook-ev-tair-1"],"scope":"","differentiation":"","faq":[],"pageUrl":"https://www.refbase.ai/reference/microsoft-outlook/P-03-001","sourceEvidence":[{"id":"microsoft-outlook-ev-tair-1","entityId":"microsoft-outlook","text":"Litmusが公開するEmail Client Market Shareレポート（2026年7月時点）によれば、Outlookはメールクライアント市場でシェア5.83%を獲得し、市場全体で第3位に位置している。","coverageType":["Credibility"],"title":"Email Client Market Share | Litmus","sourceClass":"Benchmark","sourceType":"analyst_report","confidence":"medium","supportedPromptTypes":["P-03"],"sourceVerified":false,"needsVerification":true,"sourceUrl":"https://www.litmus.com/email-client-market-share"}],"generatedAt":"2026-08-31T06:27:37.260Z","evidenceIds":["microsoft-outlook-ev-tair-1"]}]}