What would happen if top brands didn’t use DMARC?

What would happen if top brands didn’t use DMARC?

Think of brands like Samsung, eBay, Amazon, and Hulu. These brands are undoubtedly some of the biggest names in their respective industries and have been around for years, which means you can easily trust them with your personal information and data without a second thought.

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The Role Of Email Relay Services In Modern Business Communication

The Role Of Email Relay Services In Modern Business Communication

Email relay services play a pivotal role in facilitating seamless email delivery within modern business communication frameworks. At their core, these services function as intermediaries—SMTP relays—that channel outbound email messages from a sender’s email client or mail server to the recipient’s mailbox provider via a secure pathway. Acting as advanced mail transfer agents (MTAs), email relay services manage complex email routing, ensuring that emails pass efficiently through various email gateways and SMTP servers.

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AI Spreads Malware, Diplomats Phished Globally, GhostRedirector Exploits Servers – Cybersecurity News [September 01, 2025]

AI Spreads Malware, Diplomats Phished Globally, GhostRedirector Exploits Servers – Cybersecurity News [September 01, 2025]

AI Spreads Malware, Diplomats Phished Globally, GhostRedirector Exploits Servers – Cybersecurity News [September 01, 2025]

by DuoCircle

This week brought a wave of innovative and large-scale cyberattacks. Scammers abused social media ads with AI features to push harmful links, with hundreds of accounts posting thousands of scams. More than 100 compromised government email accounts were used in a global phishing campaign against embassies and international organisations. At least 65 servers were hijacked to manipulate Google search rankings, while new backdoors turned email into a data theft tool. Attackers also exploited a Microsoft-signed driver to shut down security defences and install malware. These incidents highlight how quickly trusted platforms and tools can be weaponized, emphasizing the critical need for robust email security measures.

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DMARC for GDPR and data privacy compliance: Why email authentication matters for protecting PII?

DMARC for GDPR and data privacy compliance: Why email authentication matters for protecting PII?

DMARC for GDPR and data privacy compliance: Why email authentication matters for protecting PII?

by DuoCircle

 

When it comes to data privacy, the GDPR is clear about its goal: it wants organizations to protect personally identifiable information (PII) at every stage of processing and communication. And as you already know, DMARC is a mailbox gatekeeper that authenticates emails and prevents threat actors from misusing your domain.

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Boosting Revenue With MSP Reseller Programs: What You Need To Know

Boosting Revenue With MSP Reseller Programs: What You Need To Know

 

In today’s fast-paced digital landscape, managed service providers (MSPs) are constantly searching for new ways to expand their offerings and increase profitability. One of the most effective strategies gaining traction is partnering with MSP reseller programs. These programs allow MSPs to broaden their service portfolio, strengthen client relationships, and unlock fresh revenue streams without the heavy costs of developing new solutions in-house. Whether you’re a growing IT business or an established provider, understanding how MSP reseller programs work—and how to leverage them—can be a game-changer for sustainable growth.

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Avoid Email Spam Folders: Configuring SPF Records With SendGrid

Avoid Email Spam Folders: Configuring SPF Records With SendGrid

 

If you’ve ever sent a carefully crafted email campaign through SendGrid, only to find it lurking in some unlucky recipient’s spam folder, you know that email deliverability is more art than science—and a little bit of magic. Well, unlike sorcery, improving your email’s chances of landing squarely in the inbox is absolutely doable with a simple, yet powerful tool: the Sender Policy Framework (SPF).

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Understanding all the elements of a valid DMARC record

Understanding all the elements of a valid DMARC record

 

DMARC prevents threat actors from impersonating you or someone from your organization and sending spoofed emails on your behalf. However, it’s not easy to set up, manage, and adjust DMARC to ensure this prevention. One of the challenging aspects of DMARC is understanding the syntax and its use case scenarios; otherwise, your DMARC record can run into errors. 

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Ransomware Hits Hybrid, Data Theft Campaigns, Phishing Targets Companies – Cybersecurity News [August 25, 2025]

Ransomware Hits Hybrid, Data Theft Campaigns, Phishing Targets Companies – Cybersecurity News [August 25, 2025]

Ransomware Hits Hybrid, Data Theft Campaigns, Phishing Targets Companies – Cybersecurity News [August 25, 2025]

by DuoCircle

 

Cybersecurity threats are on the rise again this week. Hybrid cloud ransomware attacks are becoming more and more frequent. Intruders are now stealing vast amounts of data and wiping out backups without even using traditional malware. Also, government networks in Asia have been targeted in long-running data theft campaigns. On top of all that, a global wave of phishing is hitting people with new malware delivered through fake voicemails and purchase orders. In South Asia, some skilled attackers are expanding their threat space to target Linux systems. And if that’s not enough, a massive healthcare data breach has exposed the personal details of more than 600,000 individuals.

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The Ultimate Guide To Generating A DMARC Record For Your Business

The Ultimate Guide To Generating A DMARC Record For Your Business

 

If you’ve ever dealt with email security, chances are you’ve heard of DMARC—short for Domain-based Message Authentication, Reporting & Conformance. But what exactly does it do, and why should you care? Well, imagine your email domain is your digital storefront, bustling with clients and sensitive communications. Without proper email authentication, it’s like leaving your front door wide open to spoofers and phishers who can impersonate your brand, wreak havoc, and tank your email domain reputation.

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DMARC alignment basics: Ensuring SPF and DKIM work together

DMARC alignment basics: Ensuring SPF and DKIM work together

 

DMARC alignment is the final checkpoint that ensures SPF and DKIM are not present for the sake of it, but are actually configured correctly and linked to your sending domain. This is done by verifying that the domain in the email’s visible ‘From’ address matches (or is aligned with) the domains used in SPF and/or DKIM authentication

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Complete Tutorial: Setting Up DKIM in Google Workspace Admin Console

Complete Tutorial: Setting Up DKIM in Google Workspace Admin Console

 

Email security is one of the most critical aspects of running a professional and trustworthy business. With cyber threats, phishing attempts, and email spoofing on the rise, ensuring that your organization’s emails are authenticated has never been more important. DomainKeys Identified Mail (DKIM) is a widely used email authentication method that adds a digital signature to your outgoing messages, helping prevent tampering and proving that emails truly come from your domain.

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How can real estate companies protect their emails with DMARC?

How can real estate companies protect their emails with DMARC?

 

The real estate industry has evolved to be as digitally driven as any other industry, like finance and retail. From property listings to deal closures, everything happens online. Although it has made things a lot easier for the agent, seller, and buyer, this digital shift has also opened doors to cyberattackers

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Apple Patches ImageIO, Hackers Exploit Apache, Noodlophile Targets Firms – Cybersecurity News [August 18, 2025]

Apple Patches ImageIO, Hackers Exploit Apache, Noodlophile Targets Firms – Cybersecurity News [August 18, 2025]

Apple Patches ImageIO, Hackers Exploit Apache, Noodlophile Targets Firms – Cybersecurity News [August 18, 2025]

by DuoCircle

 

Cybersecurity threats continue to escalate this week. Apple issued its seventh zero-day fix of 2025 after reports of active exploitation. Hackers are abusing a two-year-old Apache flaw to install hidden back doors that patch themselves to evade detection. A phishing campaign is spreading malware against enterprises worldwide. Authorities renewed sanctions on crypto exchanges that moved over $100 million for ransomware groups and froze another $300 million tied to fraud. At the same time, another malware is exploiting Windows flaws to infiltrate multiple industries.

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DMARCbis adoption: what IT leaders, CISOs, and domain owners need to know

DMARCbis adoption: what IT leaders, CISOs, and domain owners need to know

DMARCbis adoption: what IT leaders, CISOs, and domain owners need to know

by DuoCircle

 

The stronger and better DMARC2.0 is almost here. This upgraded, tighter version aims to combat the growing menace of email-based phishing and spoofing attacks, especially the ones powered by artificial intelligence

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How To Fix Dkim Signature Validation Failures In Email Communication

How To Fix Dkim Signature Validation Failures In Email Communication

 

Email communication remains one of the most essential tools for businesses and individuals alike, but ensuring its authenticity is critical to protecting recipients from phishing and spoofing attacks. One of the key mechanisms for verifying the legitimacy of an email is DomainKeys Identified Mail (DKIM), which uses cryptographic signatures to confirm that messages haven’t been altered in transit and truly originate from the claimed domain. 

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How can the finance sector leverage DMARC to defend against email fraud?

How can the finance sector leverage DMARC to defend against email fraud?

How can the finance sector leverage DMARC to defend against email fraud?

by DuoCircle

 

The finance sector thrives on trust. The fact that your clients are putting their hard-earned money in your company or institution shows that they not only have confidence in your financial products or services, but also that they believe you have the ability to keep their assets and data safe. But, truth be told, their money and data aren’t really safe unless you actively protect them.

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How To Easily Analyze Dmarc Xml Reports With Free Online Tools

How To Easily Analyze Dmarc Xml Reports With Free Online Tools

 

Email security has become a critical priority for businesses and organizations of all sizes, and DMARC (Domain-based Message Authentication, Reporting, and Conformance) plays a central role in protecting domains from spoofing and phishing attacks. While setting up DMARC ensures that unauthorized messages are flagged or rejected, the real challenge lies in understanding the flood of DMARC XML reports that email providers generate. These reports contain valuable insights into who is sending emails on your behalf, whether they pass authentication checks, and where potential vulnerabilities may exist.

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Troubleshooting Common Issues With Outgoing SMTP Mail Servers

Troubleshooting Common Issues With Outgoing SMTP Mail Servers

 

Email remains one of the most vital communication tools for both businesses and individuals, but when outgoing messages fail to send, productivity and reliability take a hit. At the heart of email delivery lies the Simple Mail Transfer Protocol (SMTP) server, which is responsible for relaying messages from your email client to the recipient’s inbox. However, misconfigurations, connectivity problems, or security restrictions can cause SMTP servers to malfunction, leaving users frustrated with undelivered or bounced emails. 

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