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20th Feb 2024
How to Implement DMARC/DKIM/SPF to Stop Email Spoofing/Phishing: The Definitive Guide

This article aims to provide a complete guide to implementing SPF, DKIM, and DMARC for your organization, and suggest the best practices for doing so. It is written in hopes that this will clear up confusion about what steps to take to achieve an effective DMARC deployment to secure business email a…

SPF DKIM DMARC
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20th Feb 2024
How to Set Up DMARC, DKIM, and SPF in Office 365 (O365) Exchange Server: the Complete Implementation Guide

It's critically important for any company using Office 365 Exchange Server for email to implement DMARC, DKIM, and SPF to prevent or stop email spoofing and phishing as well as improve email deliverability.

Office 365 has become the de facto standard for productivity software…

SPF DKIM DMARC Office 365
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20th Feb 2024
How to Set Up SPF and DKIM for Mailchimp

Follow the steps below to set up SPF and DKIM for Mailchimp, so that your marketing emails are more likely to reach the inbox. This is a process also known as email domain authentication.

How to set up SPF and DKIM for Mailchimp:

Verify your domain

Mailchimp requires you to verify that you o…

SPF DKIM Mailchimp Email domain authentication
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20th Feb 2024
How to Set Up SPF and DKIM for Mailgun

When you first set up Mailgun to send emails, you may find there is a "via mailgun.org", "via mailgun.us", or "via mailgun.info" warning for the email in the recipient's mailbox.

This warning means you haven't authorized Mailgun to deliver emails for you, so the mailbox provider considers that sen…

SPF DKIM Mailgun Email domain authentication
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20th Feb 2024
SPFはサブドメインとどのように連携しますか?

この記事では、SPFがサブドメインでどのように機能するかについて説明します。

SPFポリシー検出のしくみ

How DMARC Works With Subdomainsの投稿で説明されているように、組織ドメインにDMARCレコードが既にある場合、すべてのサブドメインがDMARCレコードを公開する必要はありません。その場合、組織ドメインのDMARCレコードは、DMARCポリシー検出プロセスによって、明示的に公開されたDMARCレコードのないすべてのサブドメインに使用されます。

SPFは同じように機能しますか?次のようにdomain…

SPF Subdomain
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20th Feb 2024
How to Set Up SPF and DKIM for SendGrid

When you first set up SendGrid to send emails, you may find there is a "Via SendGrid" warning for the email in the recipient's mailbox.

This warning means you haven't authorized SendGrid to deliver emails for you, so the mailbox provider considers that sent from SendGrid instead of your brand…

SPF DKIM SendGrid Email domain authentication
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