Setting up an SMTP relay on a Windows Server might sound like a daunting task, but it’s essential for keeping your email communications flowing smoothly. If you’ve ever hit “send” on an email and wondered what happens next, you’re not alone. Email messages travel across multiple servers before reaching their destination, making proper configuration crucial for success. Understanding the basics of how SMTP relay works can save you from frustrating delays and delivery issues down the line. This guide will take you step-by-step through the setup process, ensuring that your emails are sent securely and efficiently while navigating the unique features of newer Windows Server versions like 2025. So, let’s dive in and simplify this process together!
This week, attackers found a clever way to slip ransomware past SentinelOne’s defenses using its own update process. A serious Apache Parquet flaw just got easier to exploit thanks to a new public tool. The U.S. government is warning energy sector operators about ongoing cyber threats that use alarmingly basic tactics, and medical tech enterprise Masimo is dealing with production delays after a network breach. Plus, the Darcula phishing service is abusing iMessage and RCS. Full breakdowns below!
Are humans the most vulnerable link when it comes to cybersecurity?
by DuoCircle
The cybersecurity ecosystem stands tall on three supporting pillars- technology, processes, and people. As cyber scams are getting more sophisticated with one attack at a time, cybersecurity experts are bound to introduce more complex technology and intricate processes to curb the risk. However, human beings tend to lag behind when it comes to matching the pace with the latest cybersecurity dynamics. The 2025 Data Breach Investigation Report by Verizon has claimed that a staggering 60% of data breaches took place because of human error. Undeniably, we are the most vulnerable when it comes to the cybersecurity landscape.
Email response management software helps your team handle messages more efficiently, reducing missed opportunities and improving customer satisfaction. These tools organize conversations, automate routine responses, and track performance metrics.
Phishers abuse Google sites and DKIM replay to send fake emails and steal credentials
by DuoCircle
In a highly sophisticated phishing attack, cybercriminals took an uncommon path to allow fraudulent phishing emails to bypass Google’s security filters and redirect recipients to cloned websites, where they were asked to enter their credentials. The emails were sent from no-reply@google.com and included valid DKIM signatures— in short, it was a classic case of DKIM replay attack. That’s why they passed email authentication checks and Gmail displayed them without any warnings.
This week’s updates are packed with real-time threats and adversarial attacks. Nowadays, even Apple devices are open to silent attacks without users even tapping a button. A few software flaws are now confirmed to be under real attack, and there’s a fresh warning about ransomware-as-a-service being marketed with brand-friendly options. And if your developers forget to hide Git files, there’s a growing number of attackers ready to pounce. Here’s what happened recently and what details you should know of.
Setting up your HostGator email account might seem like a task reserved for the tech-savvy among us, but worry not—it’s easier than you think! Whether you’re starting fresh or moving from another service, having an email that matches your domain adds a professional touch to your communications. With the right guidance, you’ll sail through the setup process without a hitch. Let’s dive into this step-by-step guide that simplifies every stage, ensuring you can focus on what matters most—connecting with your audience and clients effortlessly.
What is the role and relevance of SPF in BIMI and VMC?
by DuoCircle
You might think it is easier to upload your logo next to your emails so that your audience can easily recognize your brand among all the clutter and feel more confident when engaging with your messages. But it’s far more complicated than that!
This week, we will explore how malware disguised as security tools is stealing credit card information and how hackers are initiating customer support scams. From supermarket delays to SIM data leaks, it’s been anything but quiet on the cyber front. We will also examine Microsoft’s internal misstep, which resulted in the locking out of thousands. Here’s what you need to know before you click, tap, or swipe again.
Real-time email verification and its relevance in 2025!
by DuoCircle
Emails are an integral part of our personal and professional lives. That is exactly why it is important to keep our email communications secure, effortless, and reliable. Since email systems are widely targeted by cybercrooks for malicious purposes, users are expected to adopt security mechanisms. One such effective tactic to safeguard your email communications is real-time email verification. This blog aims to explore the significance of synchronous or real-time email verification in today’s digital landscape. Have a look!
Setting up a DMARC record on GoDaddy is a smart move for anyone looking to protect their email domain from spammers and scammers. If you’ve ever been frustrated by phishing attempts or spoofed emails, you’re not alone! This guide is here to help you take control of your email security with straightforward steps designed for even the most novice user. By following these easy instructions, you’ll gain peace of mind knowing that your emails are safer, while making it harder for bad actors to exploit your domain. Let’s dive in and get your DMARC record set up today!
Subdomailing: The DMARC risk you might be ignoring
by DuoCircle
In 2024, Guardio’s email protection systems identified unusual patterns in email metadata, related explicitly to SMTP servers and their authentication as legitimate senders. Upon investigation, it was discovered that this campaign has been ongoing since at least 2022 and involves over 8,000 domains and 13,000 subdomains owned by legitimate companies, including those belonging to MSN, McAfee, eBay, and VMware, which were compromised due to subdomain hijacking. This research led to the coining of a new term—subdomailing.
Tycoon2FA Bypasses Microsoft, European Espionage Campaign, ResolverRAT Global Threat – Cybersecurity News [April 14, 2025]
by DuoCircle
This week’s cybersecurity news roundup isn’t just another string of breaches and exploits but a blueprint of how far threat actors have come and how swiftly they are advancing and increasing their attack surface. From phishing kits outsmarting MFA to malware operating entirely in memory, attackers are sharpening their tools and aiming at high-value Sharks and industry giants, even preying upon global healthcare providers and diplomatic channels. Let’s dig into what happened and how we can leverage our defenses and stay safe online!
Navigating the emerging email cyber threats in 2025
by DuoCircle
No matter how vulnerable email communications get, this mode is here to stay for the coming years. Cybercriminals are very clear about the fact that emails are the backbone of businesses, and that’s exactly why they keep targeting them. With the advent of artificial intelligence, it has become easier for them to send spoofing and phishing emails on behalf of reputable firms, impersonating their employees and CXOs. They are always ahead of the curve and keep devising new strategies and social engineering tactics to manipulate email recipients while evading detection.
In a world where emails are a crucial aspect of communication, making sure your messages get to the right people is more important than ever. Imagine sending a key email to a colleague only for it to get lost in the sea of spam—frustrating, right? That’s where SPF records come into play. They act as a security badge for your emails, showing that they are coming from a trusted source. Creating and managing these records can seem complicated, but with the right tools and guidance, you can easily enhance your email security. Dive in with us as we explore how an SPF record generator can be your best ally in keeping your communications safe and sound.
Running a subscription business is a worthwhile venture, but it equally comes with risks—especially when it comes to cybersecurity. Think payment fraud, account takeovers, and data breaches.
That’s why knowing how to secure your subscription business from online threats is more important than ever.
As of 2025, cybercrimes have become a global issue. A report says there are over 17 billion hacking attempts every day and about 5.5 billion malware attacks each year.. And this is exactly why the cyber insurance market size is estimated to be valued at $19.35 billion in 2025 and is expected to reach $71.44 billion by 2032. This exhibits a compound annual growth rate or CAGR of 20.5% from 2025 to 2032. (more…)
Email was never actually built with keeping security in mind. Back in the day, it was just a medium of communication, and it operated on trust. This made it a vulnerable target for threat actors who started exploiting email for spoofing, phishing, and spam. Over the years, email threats evolved, triggering the need for authentication mechanisms to verify if the sender is actually who they are claiming to be and protect recipients.
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