セキュリティ

"Explore the differences between STARTTLS and SSL/TLS email encryption protocols, and learn how each secures email communication by protecting data in transit."

STARTTLSとSSL/TLSですか？ 電子メールの暗号化について説明します。

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Learn how email authentication serves as the first line of defense against Business Email Compromise (BEC), protecting organizations from phishing, spoofing, and email fraud.

メール認証：BEC対策の第一線

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Discover the role of SMTP ports in email transmission and learn how SMTP security protocols protect data during email delivery. Understand the differences between SMTP port options for secure communication.

SMTPポートとは何ですか？ SMTPのセキュリティについて説明します

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"Learn about transactional emails, automated messages triggered by user actions, and explore examples such as order confirmations, password resets, and account notifications."

トランザクションメール

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ドメインスプーフィングとは何ですか？

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すべてのDMARCレポートについて知っておくべきこと

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"Discover common types of email-based attacks, including phishing, spear phishing, and Business Email Compromise (BEC). Learn how these attacks work and ways to protect against email threats."

メールによる攻撃の例

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「DMARCレコードが見つかりません」を修正する3つのステップ

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Explore the history of email, from its inception in the 1970s to its role in modern digital communication. Learn about key milestones and how email evolved into a global communication tool.

メールの歴史

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"Learn why having multiple SPF records on a domain can cause issues, and discover best practices for configuring a single SPF record to improve email deliverability and security."

ドメインに複数のSPFレコードがありますか？

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"Explore the difference between DMARC quarantine and reject policies, two email security settings that help prevent phishing and spoofing by controlling how unverified emails are handled."

DMARC 隔離と拒否： その違いは？

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"Learn about phishing, a cyber scam where attackers impersonate trusted entities to steal personal information. Discover how phishing works and ways to protect against online security threats."

フィッシングとは何ですか？

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