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Spelldata

EstablishmentOctober 16, 2000
capital1000Ten thousand
number of employees5
addressTokyo/Chiyoda-ku/27th Floor, Tokyo Sankei Building, 1-7-2 Otemachi
phone03-3242-3150
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last updated:Nov 02, 2022
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Email audit tool to protect businesses from intellectual property theft due to cyber attacks.

Rapidly increasing cyber attacks from abroad! The targets are the intellectual properties of small and medium-sized enterprises, such as technology, designs, and patents. If we don't protect ourselves, could the company be in crisis?

Don't you think that cyber attacks only target large companies? In reality, cybercriminals often first infect small and medium-sized enterprises with viruses, and then embed those viruses in emails sent to large companies. The small and medium-sized enterprises that are used as stepping stones have all their intellectual property and client information stolen. Subsequently, similar products are mass-produced in countries like China, leading to price competition that prevents them from making profits. Furthermore, they may be held responsible for infecting large companies with viruses and face potential liability for damages (as it falls under the tort of Article 709 of the Civil Code). The actual flow of an attack typically involves sending emails that impersonate employees of the target company or disguise themselves as clients to employees of that company. Once someone opens the email, they become infected, and the infection spreads from there. In other words, eliminating the initial "spoofed email impersonating internal or external individuals" is crucial for protecting both your company and your clients. So, what should be done to eliminate spoofed emails? ★ We are currently offering explanatory materials. Please check them out via "PDF Download.

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[Explanation of Invoices and Revised Electronic Bookkeeping Law] Accidents and Troubles That May Occur in the Manufacturing Industry

Have you been receiving suspicious emails lately? Fake invoices from impersonation emails created by ChatGPT and others are being sent to your company.

The invoice system will begin on October 1, 2023. Additionally, the revised Electronic Bookkeeping Act will become mandatory starting January 1, 2024. As a result, the entire industry has begun to digitize and send invoices electronically. This raises the issue of "spoofing emails (phishing emails)." With generative AI like ChatGPT, it has become possible to create emails in natural-sounding Japanese, leading to an increase in cases where cybercriminals send sophisticated "fake invoices." If a fake email impersonating your company reaches your business partners or customers, the following problems may arise: - Employee or customer personal information may be leaked, leading to lawsuits. - Important corporate secrets may be stolen and resold, causing your company to lose competitive advantage. - Company funds may be siphoned off. - Business partners may become infected with a virus through your company, resulting in massive compensation claims. (According to Article 709 of the Civil Code, your company may be deemed to have "not taken necessary measures" against spoofing emails and could bear liability for damages.) We have prepared a document that explains this situation in more detail and outlines potential solutions. Please download it and use it to ensure safe operations!

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[Blog] Zero Trust Security Model for Email

Let's implement a security model of 'Trust but Verify'! Introduction to the blog.

Email threats are evolving beyond the delivery of malicious links and attachments. As a result, companies are beginning to apply a zero-trust security model to email. Nowadays, attackers may impersonate the sender to deceive the recipient and launch social engineering attacks. Most of these attacks do not involve sending malware, and since these emails do not contain identifiable dangerous elements, even advanced email security gateways and defenses can be easily bypassed. *You can view the detailed content of the blog through the related link. For more information, please feel free to contact us.*

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[Blog] Top 5 Email Security Tools of 2022

Five Tools You Should Set Up to Protect Email Security! Introduction to the Blog

In recent times, as companies have started to use email on a daily basis, the importance of email security tools has been increasing. General employees receive numerous spam emails from both inside and outside the company each day, making email an efficient medium for causing information leaks. Due to the lack of time to deal with the vast number of emails, employees can become trapped in a false sense of security. Cybercriminals take advantage of this to carry out phishing attacks that have increased in frequency and potency through cloud-based email. [Contents] ■ Common email security threats ■ Comprehensive list of email security tools for businesses ■ Summary *For more details on the blog content, please refer to the related links. For further inquiries, feel free to contact us.

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[Blog] What is SPF Include?

What is the "Include" mechanism? An explanation of how to optimize it according to needs.

The SPF "Include" mechanism is a way to keep the criteria and conditions that specific servers must meet in order to improve email deliverability within the SPF record. If you accidentally fail to add a third-party vendor's Include statement to the SPF record, it can cause issues such as emails not reaching the recipient, leading to a significant increase in the overall bounce rate. This article explains what the SPF record's "Include" mechanism is and how to optimize the SPF Include statement to meet your needs. Please take a moment to read it. [Contents (excerpt)] ■ What is SPF Include? ■ Multiple SPF records are not allowed, but why? ■ How to include multiple domains, hosts, and IP addresses in SPF ■ Understanding the semantics of SPF records *For more details, you can view the related links. Please feel free to contact us for more information.

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[Blog] What is IP Spoofing?

Reasons for IP spoofing and countermeasures! Information on spoofing countermeasures introduced in the blog.

What is IP spoofing? In simple terms, it is when a user or program attempts to send packets using an IP address that is not authorized for use. It is also called IP address spoofing, and its purpose is to masquerade as a legitimate source IP. This is the official definition, and there are many factors that can effectively cause IP address spoofing. [Contents (excerpt)] ■ What is IP spoofing? ■ Why do hackers perform IP address spoofing? ■ Types of IP spoofing ■ How to detect IP spoofing ■ How to protect yourself from IP spoofing? *For more details about the blog, you can view it through the related links. Please feel free to contact us for more information.

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[Blog] How to Fix 550 SPF Check Failed?

Solved with a few simple steps! Introduction to troubleshooting and more on the blog.

The message "550 SPF Check Failed" is a common error prompt that may occur when the sender's DNS lacks an SPF record, has an invalid record, or is triggered by third-party spam filters. An important point regarding this type of error is that it is usually the sender's responsibility, not the recipient's, and it can be resolved with a few simple steps. 【Contents】 ■ About SPF ■ What is the "550 SPF Check Failed" error? ■ Possible causes of the "550 SPF Check Failed" error ■ Troubleshooting the 550 SPF Check Failed Error *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] DKIM Analyzer

Ensure email authentication and protect against external threats! Let's analyze DKIM manually or automatically.

Have you ever wondered what a DKIM Analyzer is? DKIM stands for DomainKeys Identified Mail, which is a method of verifying the sender of an email. This is commonly used by companies to protect their brand from spammers attempting to impersonate them by sending fake emails that appear to be from the company. [Contents] ■ What is a DKIM Analyzer? ■ How to analyze DKIM results? ■ Let's start analyzing DKIM right now! *You can view more details about the blog through the related links. For more information, please feel free to contact us.

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What is caller ID spoofing?

Answering various questions such as what caller ID spoofing is! Introduction to the blog.

Caller ID spoofing is when a caller uses technology to make their phone number appear as someone else's, such as another person or company. The caller may do this for various reasons, such as hiding their identity, avoiding unwanted calls, or making it look like the call is coming from a more trustworthy source. This article will answer various questions about what caller ID spoofing is, among other things. Please take a moment to read it. [Contents (Excerpt)] ■ What is caller ID spoofing? ■ Examples of caller ID spoofing: Actual attacks and incidents ■ How is caller ID spoofing carried out? ■ How is caller ID spoofing dangerous? ■ Spoofed calls: What should you look out for? *For more details, you can view the related links. Please feel free to contact us for more information.

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What is ping spoofing?

Introducing a perfect article for those who want to know what ping spoofing is.

Have you ever noticed that a certain player's internet connection is very slow while playing a multiplayer online game? Let's say there are issues with lag or frequent shutdowns. This is something everyone has likely experienced. If you've experienced slow internet during a game, you may have noticed that a high ping corresponds to a slow connection, while a low ping indicates a faster internet connection. Ping spoofing is different, and its prevention measures are also different. Therefore, we would like to introduce an article that is perfect for those who want to know what ping spoofing is. Please take a moment to read it. *You can view more details about the blog through the related links. For more information, feel free to contact us.*

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[Blog] What is DNS Spoofing?

A very inconvenient situation for both website visitors and owners! Introduction to the blog.

What is DNS spoofing? DNS spoofing is a commonly used attack method to deceive companies. DNS itself is never completely secure. It was designed in the 1980s, a time when the internet was still a novelty, and security was not a major concern. As a result, malicious individuals have taken the time to exploit this issue and develop advanced DNS-based attacks such as DNS spoofing. *For more details, you can view the related links. Please feel free to contact us for more information.*

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[Blog] Measures Against Spoofing Emails

DMARC is a key measure against spoofed emails! We will introduce how to identify them in our blog.

Email spoofing is a type of internet fraud. Hackers impersonate someone else and send emails, using these fake emails to get recipients to open attachments or click on links. This is done in two ways: by stealing your email address or by creating a fake email address that resembles yours. Email spoofing occurs for various reasons, but one common reason is to get the recipient to click on links that lead to websites designed to download malware or viruses onto their computer. In this way, attackers can steal your login information for your bank account and other financial accounts. *For more details about the blog, you can view it through the related links. Please feel free to contact us for more information.*

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[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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[Blog] What is a DNS A Record?

Linking domain names and IP addresses! Introducing why it's necessary and how to manage it.

In the Domain Name System, an A record is one of the important records that make up a domain name. The DNS A record contains the IP address of the host computer (or hostname) associated with the domain name. If a website is located on a server that is separate from the site where the domain name is registered, the A record likely points to that location. Let's take a closer look at what a DNS A record is, why it is necessary, and how to manage DNS A records. [Contents (Excerpt)] ■ What is a DNS A record? ■ Why is an A record necessary? ■ How do you create one? *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] What is phone number spoofing?

How to prevent phone number spoofing? Here are some tips for preventing phone number spoofing.

Phone number spoofing refers to the act of misrepresenting someone or something as a non-existent entity, particularly in violation of rules or misuse. This is typically seen in phone calls or emails, where incoming calls appear to be coming from one's own number, but in reality, they are using a fake caller ID to conceal that they are originating from a different location. While it may sound similar to caller ID spoofing, it is not the same. In this article, we will introduce methods to prevent phone number spoofing. [Contents] ■ How to prevent phone number spoofing? ■ Tips for preventing phone number spoofing ■ Conclusion *For more details, you can view the related links. Please feel free to contact us for more information.

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[Blog] What is Email Display Name Spoofing and How to Prevent It?

Display name impersonation spreading through phishing scams! We introduce the reasons and more in our blog.

Email display name spoofing is a type of social engineering attack that alters data to illegitimately change an individual's perception. Spoofed emails can lead even honest employees within an organization to believe they are communicating with the CEO or other senior executives. Extremely sophisticated spoofed emails can deceive even those who are supposed to check for them due to their authentic appearance, making them accepted in most cases. [Content Overview (Excerpt)] ■ What is display name spoofing? ■ Why is "display name spoofing" spreading through phishing scams? ■ How to avoid becoming a victim of email display name spoofing? *For more details, please refer to the related links. Feel free to contact us for further information.

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[Blog] What is spear phishing?

Phishing targeting specific individuals or organizations! We introduce what is necessary to protect yourself in our blog.

Do you know what spear phishing is? If you've ever used the internet, you might be familiar with it. Among various phishing scams, spear phishing is a common attack method, and currently, 65% of all recognized attackers are utilizing it. Unfortunately, the weak point in phishing countermeasures for most companies lies with their employees. Don't know what spear phishing is? This article is perfect for you. Please take a moment to read it. 【Contents】 ■ What is the mechanism of spear phishing? ■ The growing threat of spear phishing attacks ■ What is necessary to protect yourself from spear phishing? ■ Conclusion *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] What is a DNS SOA Record?

Load balancing through zone transfer! Introducing its importance, structure, procedures, and more in a blog.

The exact number of active websites continues to change, but on average, 175 new websites are created every minute. This means that 252,000 new websites are born each day. Needless to say, users cannot reach their desired page without entering the URL of the website. This is where the role of the DNS SOA record begins. What DNS records are and their types have already been explained previously. In this article, you will learn what a DNS SOA record is. Please read on to understand its importance, structure, procedures, and more. [Contents (excerpt)] ■ What is a DNS SOA record? ■ Why is an SOA record necessary? ■ What is zone transfer in DNS? ■ How does an SOA record function? *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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[Blog] What is a DNS AAAA Record?

Mapping a domain to IPv6! An introduction to why it is important and how to add it.

There are eight common types of DNS records, but this article focuses on understanding the DNS AAAA record. This is a type of DNS record that helps browsers direct users to the appropriate web page on the internet. The AAAA record is similar to the A record, but the former is based on IPv6 while the latter is based on IPv4. By reading to the end, you will understand why the AAAA record is important for converting domain names to IP addresses and how to add an AAAA record. We encourage you to read on. [Contents (excerpt)] ■ What is a DNS AAAA record? ■ When is a DNS AAAA record used? ■ Benefits of using a DNS AAAA record *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] What is Dumpster Diving in Cybersecurity?

Targeting the weak security "trash can"! Introducing the mechanisms and benefits in a blog.

It is a well-known fact that cybersecurity is currently a hot topic, but what relationship does dumpster diving have with it? Dumpster diving is the act of searching for useful information in unprotected trash bins. In the context of cybersecurity, this means stealing confidential data or accessing proprietary information. [Contents] ■ What is dumpster diving? ■ Benefits of dumpster diving in IT ■ Dumpster divers using social engineering techniques ■ How to stop cyber attacks through dumpster diving? *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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What is ARC?

Maintaining SPF and DKIM results even after forwarding! We introduce situations where ARC is helpful in our blog.

ARC (Authenticated Received Chain) is one of the email authentication systems that displays the authentication evaluations at each stage when processing emails. In simpler terms, Authenticated Received Chain can be described as a series of verifications of email messages that allows each entity handling the email message to efficiently verify all previously processed entities. ARC, a relatively new protocol published and documented as "Experimental" in RFC8617 in July 2019, enables email verification by the receiving server even when SPF and DKIM have been invalidated by intermediary servers. 【Contents】 ■ What is ARC (Authenticated Received Chain)? ■ DMARC's ARC ■ How does Authenticated Received Chain help? ■ How does DMARC's ARC work? *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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What is farming and how can it be prevented?

An attack that rewrites routes at the DNS level! Knowing how to prevent it is even more important.

Farming is a type of cyber attack that is difficult to track due to its complex setup. According to the definition of farming, it is an attack where the threat actor redirects users to a malicious website that appears to be a legitimate one, compromising their data. In September 2021, over 50 financial institutions fell victim to sophisticated farming attacks targeting online customers in the U.S., Europe, and the APAC region. For three days, until the farming malware was recognized and stopped, approximately 1,000 devices were infected each day. Incidents like this highlight the importance of understanding what this type of attack is and how to prevent it. Read this blog to learn all about this modern cybercrime. *For more details, you can view the related links. Please feel free to contact us for more information.*

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[Blog] Corporate Email Security Checklist

Important for protecting companies from the threat of cybercrime! Here are some tips for safety.

Emails are personal, but they are also professional and can be used to share confidential information. Therefore, it is important to recognize the significance of corporate email security and understand how it impacts employee productivity, security, and even customer productivity. It is necessary to establish email security to protect companies from cybercrime threats such as impersonation and phishing. Building a corporate email system that ensures security while being user-friendly for employees is essential. 【Contents】 ■ Why is it necessary to protect company emails? ■ Corporate email security strategy ■ Analyze email channels and monitor deficiencies in the company's email security posture *For more details about the blog, you can view it through the related links. Please feel free to contact us for more information.

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[Blog] Building an Email Security Compliance Model

Achieve a secure business mailing system! Build email security and gain trust.

Email security compliance refers to the policies and processes that ensure the confidentiality of electronic communications by monitoring, maintaining, and implementing controls. This can be achieved through regular email audits and ongoing monitoring activities. All organizations need to document a Security Compliance Model (SCM) that outlines the policies, procedures, and activities related to email security compliance. This helps prevent communication violations within the organization and ensures that business partners are wary of companies with inadequate security measures. [Content Overview (Partial)] ■ What is email security compliance? ■ Understanding email security compliance regulations for businesses ■ How to build an email security compliance model ■ Other steps to build an email security compliance model ■ Who is responsible for email security compliance? *For more details about the blog content, please refer to the related links. Feel free to contact us for more information.

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[Blog] What is Data Loss Prevention (DLP): A DLP Guide for Beginners

Data loss prevention strategies in the digital age! You can effectively protect your data.

DLP (Data Loss Prevention) is a security technology designed to protect organizations from the loss of confidential information. DLP solutions can be applied at various points on the network, including on-premises, cloud, and mobile devices. Starting today, let's implement effective data loss prevention strategies in our organization to protect our data. [Content Overview (Partial)] ■ What is DLP (Data Loss Prevention)? ■ DLP for Email: A Convenient List of Resources ■ Why DLP (Data Loss Prevention)? Benefits and Usage ■ Three Approaches to Data Loss Security ■ Three Steps to Successfully Implement Data Loss Prevention *For more details on the blog content, you can view it through the related links. Please feel free to contact us for more information.

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[Blog] What are the characteristics of impersonation emails?

Prevent with PowerDMARC! Spoofing attacks are a serious threat to you and your company.

Spoofed emails are fake messages that pretend to be from a trusted sender (such as a company you know), but are actually sent by malicious actors. The purpose of these emails is to steal personal information, and stolen credit card information can be used for fraud, such as card skimming. The scammers behind this type of fraud are always looking for ways to obtain other people's personal information to carry out additional scams later. Spoofed emails are often operated as a service known as PhaaS (Phishing-as-a-Service), making it easy for scammers to use without specialized knowledge. [Content Overview] ■ What are spoofed emails? ■ Top 10 characteristics of spoofed emails ■ Countering spoofed emails with PowerDMARC *You can view more details on the blog through the related links. For more information, please feel free to contact us.

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[Blog] How to Handle When SPF is Broken

Let's identify the cause of the SPF failure. There are several underlying reasons for the damage.

When an SPF record is broken, the DNS record will stop functioning. This can lead to the loss of emails during transmission or the failure to receive emails that should have been delivered. If the SPF record is broken, the first step is to identify the cause of the breakage and proceed with troubleshooting. If you already feel overwhelmed by fixing the broken SPF, it is recommended to outsource the task. [Contents] ■ What is a broken SPF record? ■ Why does SPF data break? ■ What to do when SPF is broken? ■ How to automate this process? *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] How to Stop Spoofed Emails from My Email Address?

Introducing email authentication protocols! Here's how spoofed emails can cause harm.

Spoofing is one of the common types of attacks. Fraudsters love to hijack the names and email addresses of email networks (such as Hotmail and Gmail) to send thousands of fake emails that appear to come from someone you know (like CEOs or executives from competing companies). Let's make sure that identity thieves do not spoof your email address. This article explains how to protect yourself from spoofing emails and why it is important to pay attention to this serious information security threat. [Contents] ■ Spoofing Emails: What are they? ・How do spoofing emails cause harm? ・How can you stop spoofing emails that are continuously sent using your email address? *For more details about the blog, please refer to the related links. Feel free to contact us for more information.

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[Blog] Microsoft DMARC Aggregate Report

Increase the bit count of the DKIM key to enhance security! You can enjoy various benefits.

Microsoft is sending DMARC RUA aggregate reports to users. Microsoft DMARC aggregate reports are sent from the address dmarcreport@microsoft.com. Microsoft DMARC aggregate files are sent in standard XML format. By finally adopting DMARC reports, the company essentially means that users of Hotmail, Outlook, Live, and msn.com will be able to enjoy various benefits of Microsoft DMARC aggregate data. 【Contents】 ■Processing Microsoft’s DMARC aggregate data ■Issues you may face when handling Microsoft DMARC Aggregate Reports on your own ■Prerequisites for receiving Microsoft DMARC RUA *For more details, you can view the blog through the related link. Please feel free to contact us for more information.

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[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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[Blog] What is the DMARC sp (Subdomain Policy) Tag?

The meaning and usage of specifying a percentage! Setting subdomain policies with DMARC record generation.

The "sp" attribute stands for subdomain policy and is not widely used at present. This allows a domain to specify different DMARC records for its subdomains. To keep things simple, it is recommended to omit the "sp" attribute from the organizational domain itself. This leads to a fallback default policy that prevents spoofing at the subdomain level. It is important to remember that the behavior of subdomains is always determined by the prevailing organizational policy. [Content] ■ Why is the DMARC sp tag necessary? * For more details, you can view the related links. Please feel free to contact us for more information.

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[Blog] What is the pct (percentage) tag of the DMARC record?

It is often overlooked, but setting and testing the DMARC policy for your domain is an effective method.

The DMARC pct tag is part of this record and informs email recipients what percentage of messages will be affected by this policy. If the domain owner wants to specify what to do with emails that fail authentication, the DMARC record can assist with that. Companies can specify what they want to happen to emails that fail source integrity by issuing a text record in DNS and deciding whether to deliver, quarantine, or completely reject them. [Contents] ■ What does pct mean in DMARC? ■ Why is the DMARC pct tag necessary? ■ What happens if the pct tag is not included in the DMARC record? *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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What is a DMARC tag?

Here is a list of DMARC tags that domain owners can set in their DMARC records!

A DMARC record is a collection of various mechanisms and DMARC tags that convey specific instructions to the email receiving server during email forwarding. These DMARC tags contain values defined by the domain owner. In this article, we will explain what DMARC tags are and what each tag means. [Contents] ■ Types of DMARC Tags *For more details, you can view the blog through the related links. Please feel free to contact us for more information.*

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[Blog] SPF Void Lookup

Various foolproof methods and practices can be implemented to ensure that the limit of two is not exceeded.

The current limit for SPF void lookups specified in the RFC is 2. This specification can be confirmed in RFC7208 (Section 11.1), which indicates that there is a limit on the number of allowed SPF void lookups per SPF check. Those reading this article may have encountered error messages when checking protocol processing or email DMARC report data. To better understand, let me explain what SPF void lookup is. [Contents] ■ What is SPF Void Lookup? ■ How can we avoid the limitations of SPF Void Lookup? *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] Why is DMARC important?

Understand the benefits of DMARC! You can protect your brand's reputation and identity.

DMARC is a standard email authentication protocol that, when set up on top of existing SPF and DKIM records, helps verify whether either or both of the authentication checks have failed. DMARC helps protect outgoing emails and prevents spoofing and phishing attacks by rejecting messages that do not meet certain criteria. Additionally, mail servers can report messages received from other mail servers, assisting senders in resolving issues. This blog post explains the importance of DMARC and what you can do to implement it correctly for your domain. [Contents] ■ Why is DMARC important and why should your company use it? ■ Who can use DMARC? ■ How to set up a DMARC record for your domain? *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] Fixing "SPF alignment failed"

Understanding SPF Alignment! Here's how to fix "SPF alignment failed"!

To protect your domain and online identity from scammers trying to impersonate you, it is necessary to set up DMARC for your email domain. DMARC works through a cumulative email authentication effort involving the SPF and DKIM protocols. Additionally, DMARC users benefit from receiving reports on email delivery issues, authentication, and alignment failures. If the DMARC aggregate report states "SPF alignment failed," I will explain what SPF alignment is and how to resolve this issue. [Contents] ■ What is SPF alignment? ■ Why does SPF alignment fail? ■ How to fix "SPF alignment failed" *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] 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] How to Solve the "Maximum Character Limit for SPF"?

By optimizing DNS records, it becomes possible to enjoy an implementation without errors.

There is a limit of 255 characters for SPF records, and exceeding this limit can corrupt the SPF, potentially leading to authentication failures. If you see the message "SPF exceeds maximum characters limit," it simply means that your DNS's SPF record is longer than the character limit specified in RFC7208. This can be a problem, especially when email delivery heavily relies on SPF compliance. 【Contents】 ■ Optimize to stay within the length limit of SPF ■ What happens if the SPF character limit is exceeded? ■ Strictly adhere to SPF record limits with PowerSPF *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] How much is that one minute?

Reduce the time to recover from disruptions and cut costs. This could lead to savings of millions of dollars.

Network failures are generally common, but the costs can be high. Typically, they are much higher than people think. Yes, networks do go down, and companies suffer losses, but do you really understand how significant those losses are? Also, what is the actual cost per minute during a failure? It is something that can be mitigated quite easily, more so than many people consider. [Content Highlights (Partial)] ■ Average cost during a failure ■ Calculation of MTTR (Mean Time to Repair) ■ Four ways to alert quickly and effectively ■ Five ways to increase diagnostic speed ■ Reduce time and minimize costs *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] SRE Report 2023 - Do We Share the Same Thoughts?

What is the essential thing? The "gap" in understanding between the practical staff and the management team.

The SRE report contains trends and anti-patterns that make us pause and reflect every year. For example, last year we found that labor levels had significantly decreased globally. However, despite a major resumption of business activities this year, labor levels have further declined. This is a paradox, and it is undoubtedly necessary to examine it closely. In this year's report, we conducted a detailed investigation of responses to questions about specific opportunities and challenges based on roles and ranks (e.g., independent contractors and executives), revealing interesting patterns. [Contents (partial)] ■ Value derived from AIOps ■ Recognition of "nothing to blame" ■ Prioritization trends in product suites ■ Impact of mass turnover ■ Communication and collaboration *You can view the detailed content of the blog through the related links. Please feel free to contact us for more information.

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[Blog] Catchpoint's IPM Platform

The importance of adopting a monitoring strategy that utilizes solutions! Extremely targeted monitoring is possible.

Detection is not as easy as it sounds. Many sites rely on basic uptime monitoring (sometimes only monitoring the homepage), which means that companies experiencing intermittent or partial site outages may overlook such detections. In early December 2021, our transaction monitoring capabilities detected just such an issue at Amazon. This article introduces how Catchpoint's IPM platform detected a two-day search outage at Amazon. [Content Highlights] ■ Detection of Amazon's search failures ■ Which layer of the internet stack was responsible? ■ Challenges to the observability golden triangle ■ Why IPM is important here *For more details, you can view the related links. Please feel free to contact us for more information.

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[Blog] What is Internet Performance Monitoring?

What is the difference from APM? Collaborate IPM and APM to ensure internet resilience.

The first ten years of the year 2000 saw most companies hosting Exchange servers, Siebel CRM, file sharing, and various other business applications, typically within the same building. Now, it is the complete opposite. Everything is distributed. Applications are either SaaS-based or hosted across multiple data centers and clouds, and the applications themselves have dozens to hundreds of dependencies. There is a need for new solutions that provide the visibility necessary to understand, monitor, fix, and optimize the internet stack. [Contents] ■ Introduction to Internet Performance Monitoring ■ APM and Observability ■ Integration of APM and IPM ■ IPM is a technology and skill set required by network engineers *For more details on the blog content, please refer to the related links. Feel free to contact us for more information.

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[Blog] What I want for Christmas is a resilient internet!

What I really want this year is a reliable, stable, and resilient internet!

Dear Santa, I have been a very excellent IT Operations Manager this year. (Considering the current state of the world, this might be an exaggeration.) So, I have a few items on my wish list. For more details, please see the related links. [Contents (partial)] - Eliminate outages! - Significantly reduce help desk tickets! - More comprehensive RUM and web experience analysis! - Ghosts of past and present detailed data! - Real-time BGP data! *For more details, you can view the blog through the related links. Please feel free to contact us for more information.

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[Blog] Farewell LAN - The Internet is the Network

The legacy network has been shut down, and the internet has transitioned to a new network!

We are now at the peak of significant technological innovation. This is what Peter Drucker refers to as the "discontinuity" of technology. (Accelerated by the COVID-19 pandemic) For decades, IT organizations have invested in building, managing, and monitoring LANs. CRM, Exchange email, file sharing, print servers, everything was on local networks. Today, many companies are shutting down their "old legacy networks" and are conducting business without LANs, WANs, or on-premises data centers. Everything is now on the internet. In other words, the internet is the network. *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] BGP Monitoring by Catchpoint

Quickly detect and fix BGP issues! A video explanation on what BGP phenomena to watch out for, etc.

BGP is essentially the postal service of the internet. Without BGP, traffic does not move. Therefore, if there are issues with the configuration, or in the worst case, malicious actions occur, the impact can be significant. This is why constant monitoring of BGP traffic is extremely important. In this blog, we explain why BGP issues can affect revenue and provide a video showcasing how to quickly detect, analyze, and resolve issues using Catchpoint's market-leading BGP monitoring solution. [Content Highlights (Partial)] <Transcript (Video Transcript)> ■ What BGP events to pay attention to ■ How to display BGP issues in the Catchpoint portal ■ Features of Catchpoint's BGP overview dashboard *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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