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Measures against impersonation emails, specifications for email encryption: What is DMARC?

Measures against impersonation emails, specifications for email encryption: What is DMARC?

Explicit processing notification and audit for SPF and DKIM authentication failures!

On our company website, we introduce measures against spoofing emails and the specifications for email encryption. "DMARC" (Domain-based Message Authentication, Reporting & Conformance) is an extension of the existing email authentication mechanisms SPF and DKIM, providing a protocol specification that allows email domain owners to prevent spoofed email sending. We will provide detailed information about the three main roles of DMARC through related links. Please take a look. [Contents] ■ The sending domain specifies the policy on how to handle emails that violate SPF or DKIM ■ Detecting spoofed From addresses (DMARC Alignment) ■ Receiving reports necessary for email auditing *For more details, please refer to the related links. Feel free to contact us for further information.

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PowerDMARC Features: Hosted Service

PowerDMARC Features: Hosted Service

Instead of directly setting it in DNS, centrally manage various settings on the PowerDMARC portal site!

We would like to introduce the features of the email security service 'PowerDMARC' under MENAInfoSec in the United States. The "hosting service" allows for centralized management from the portal's configuration screen by referencing the values on the PowerDMARC side using CNAME, rather than directly rewriting the values of the DNS resource records. Please feel free to contact us if you have any inquiries. 【Features】 ■PowerSPF ■Hosted DKIM ■Hosted DMARC ■PowerBIMI ■PowerMTA-STS *For more details, please refer to the PDF document or feel free to contact us.

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How to set up DMARC in Office 365?

How to set up DMARC in Office 365?

What is missing from Office 365? A step-by-step guide introduced in the blog.

Microsoft is expanding support for email authentication protocols like DMARC across all email platforms. However, to fully leverage its benefits, it is essential to know how to properly implement DMARC in Office 365. In recent years, many companies have transitioned to effective and robust cloud-based platforms and hosted email solutions like Office 365. Consequently, cybercriminals have upgraded their malicious techniques to cleverly exploit the integrated security solutions of these platforms for email fraud. This blog will explain how to set up DMARC in Office 365. [Overview (partial)] ■ Why set up DMARC in Office 365? ■ Is DMARC really necessary if you are using Office 365? ■ How does DMARC function within Office 365? *For more details, you can view the blog through the related links. Please feel free to contact us for further information.

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[Blog] Explanation of Overriding DMARC Policy

[Blog] Explanation of Overriding DMARC Policy

A very important factor in preventing email spoofing and impersonation! Introduction to a blog article.

This article provides a detailed explanation of what DMARC policy overriding is, how it works, the differences between DMARC policy overriding and DMARC policy failure, and whether DMARC record overriding is legitimate. Please take a moment to read it. [Contents (excerpt)] - Explanation of DMARC policy overriding - Understanding the DMARC policy overriding mechanism - Five values of DMARC policy overriding - Is DMARC policy overriding allowed? - Should DMARC policy overriding reports be sent? *For more details, you can view the related links. Feel free to contact us for further inquiries.

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Measures against spoofing emails, specifications for email encryption: What is DKIM?

Measures against spoofing emails, specifications for email encryption: What is DKIM?

Guarantee of the sender's authenticity and the integrity of the message content using public key cryptography!

On our company website, we introduce measures against spoofing emails and the specifications for email encryption. "DKIM" (DomainKeys Identified Mail) utilizes public key cryptography, where the public key is recorded in DNS, and the MTA signs the email using a private key. This allows the receiving MTA to verify the legitimacy of the sender and the integrity of the email content. By setting up the record, the receiving mail server can determine whether the email was sent by a legitimate sender upon receiving it. For more details, please refer to the related links. [Contents] ■ Example of operation ■ If only the DKIM settings are configured, the processing is left to the receiving mail server ■ If the sender wants to control the processing, DMARC settings are necessary ■ Is S/MIME not acceptable? *For detailed information, please refer to the related links. For further inquiries, feel free to contact us.

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[Blog] DMARC VS SPF

[Blog] DMARC VS SPF

To make the most of email authentication standards, we recommend using PowerDMARC's auditing features.

In this article, we will explain DMARC and SPF for those who are unable to keep up with the debate, helping you understand what they are and how they can be beneficial. SPF (Sender Policy Framework) allows you to cache a list of IP addresses that are authorized to send emails on behalf of your company. (RFC4408) On the other hand, DMARC specifies policies for emails that fail authentication and helps domain owners manage the strictness of the implemented security protocols. [Contents] - Is SPF sufficient, or is DMARC also necessary? - Can DMARC be implemented without DKIM? - DMARC vs SPF: Summary - Benefits of DMARC software solutions *You can view the detailed content of the blog through the related links. For more information, please feel free to contact us.

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[Blog] Strengthening Security by Increasing the Bit Count of DKIM Keys

[Blog] Strengthening Security by Increasing the Bit Count of DKIM Keys

Together with SPF and DMARC, it has dramatically improved the email security systems of organizations around the world.

Due to the threats lurking on the internet, companies need to adopt strong authentication methods to prove their legitimacy. A common method is DKIM (DomainKeys Identified Mail). This is an email authentication technology that uses cryptographic keys to verify the sender's domain, and with DKIM, the sender's domain is confirmed. In this article, we will introduce how to upgrade the DKIM key for Microsoft Office 365 Exchange Online from 1024 bits to 2048 bits. [Contents] ■ The importance of upgrading the length of DKIM keys ■ Manually upgrading DKIM keys using Exchange Online PowerShell *For more details on the blog, you can view it through the related links. Please feel free to contact us for more information.

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