Managed services refer to the proactive outsourcing of IT tasks and responsibilities to a third-party provider, enabling businesses to streamline their technology operations while focusing on core competencies. Unlike traditional IT outsourcing, which is often project-based or reactive, managed services emphasize ongoing infrastructure management, performance optimization, and proactive maintenance under a predefined service level agreement (SLA). This approach is designed to maximize system uptime, enhance security posture, and improve operational efficiency.
DomainKeys Identified Mail (DKIM) is a critical component of modern email security standards and plays a vital role in email authentication frameworks alongside Sender Policy Framework (SPF) and Domain-based Message Authentication, Reporting & Conformance (DMARC).
This week’s cyber reports reveal escalating threats on trusted platforms. A significant phishing attack on npm spread malware to millions, while a compromise of Salesloft’s GitHub account impacted the Drift application. Researchers also uncovered a malvertising campaign using fake GitHub commits and detailed the stealthy EggStreme framework, highlighting how attackers are exploiting familiar workflows with increasing sophistication and success.
Laposte.net’s 2025 email authentication shift: strategic insights and implementation best practices for enterprises
by DuoCircle
La Poste, France’s leading email service provider, which serves millions of users with private email addresses, has introduced mandatory email authentication requirements starting in September 2025. Now, what this means is that every email sent to Laposte.net addresses must pass SPF, DKIM, and DMARC authentication checks. If the senders don’t adhere to this, their emails will be relegated directly to spam.
In the realm of electronic communications, an email server is a critical component responsible for sending, receiving, and storing emails. At the core of email transmission lies the Simple Mail Transfer Protocol (SMTP), an essential set of rules that govern how outbound mail servers relay messages efficiently and securely. Within this infrastructure, the mail transfer agent (MTA) functions as the backbone, managing the routing and delivery of email through SMTP relays.
DomainKeys Identified Mail (DKIM) stands as a crucial pillar of email authentication and security. Defined under RFC 6376, DKIM is an email protocol that uses cryptography to sign email messages with a private key after leaving the mail client or mail server, specifically the mail transfer agent (MTA). The cryptographic signature included in the email headers enables receiving mail servers to perform signature verification by retrieving the corresponding public key from a DNS TXT record associated with the sender’s email domain.
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.
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.
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.
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.
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.
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).
Understanding all the elements of a valid DMARC record
by DuoCircle
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.
Setting up a robust and reliable Windows email server can feel like deciphering an ancient scroll written by Roy Fielding himself — packed with cryptic protocols and obscure configurations. Yet, with the right guidance, configuring these servers transitions from hair-pulling chaos to an empowering exercise in email mastery.
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.
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.
Migrating to Office 365, or Microsoft 365 as it’s increasingly known, can feel like preparing for a grand adventure through the digital wilderness. You’re trading your familiar desktop-land for the vast expanse of cloud computing — a brave, sometimes bumpy journey.
DMARC alignment basics: Ensuring SPF and DKIM work together
by DuoCircle
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.
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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