Email authentication is fundamental to achieving secure and dependable email delivery, with DKIM being a key factor in verifying the authenticity and integrity of your communications. However, merely implementing DKIM is insufficient — ineffective selector management can compromise security, lead to verification errors, and damage your sender reputation.
What does it really mean to send emails securely?
The success of email delivery is largely influenced by effective domain authentication, with a crucial aspect often neglected being the SPF void lookup. When an email server assesses a domain’s Sender Policy Framework (SPF) record, it conducts DNS lookups to confirm that the sending source is permitted. If these lookups fail or yield no results, they are categorized as “void lookups,” which can undermine the strength of your domain’s authentication.
![Global Amazon Threats, LinkedIn Attack Hotspot, Ledger Breach Safety – Cybersecurity News [January 9, 2025]](https://www.duocircle.com/wp-content/uploads/2026/01/email-smtp-service-7865.jpg)
Last week was replete with unfortunate phishing mishaps. Here are the top cyber incidents that we have covered for you to keep you updated. While Amazon, the e-commerce giant, is being targeted by phishing actors, left, right, and center, LinkedIn is also becoming a popular playground for cybercrooks. The crypto community is already in shock because of the Ledger customer data breach incident. Meanwhile, a highly sophisticated campaign is targeting the user credentials by impersonating Google Support.
The sophistication of email threats is increasing, complicating the ability of businesses to safeguard their domains and reputation. DMARC XML reports provide essential information regarding entities sending emails on your behalf; however, the raw data can be intricate and challenging to analyze. (more…)
Ensuring your emails land in the inbox rather than the spam folder is essential for effective communication. As phishing threats become more prevalent and email authentication requirements tighten, it’s crucial for organizations to take additional measures to authenticate their messages.
It’s 2026, and email-based attacks remain one of the major concerns for organizations. It opens the door to sophisticated attacks such as phishing, brand impersonation, and business email compromise. This means cursory checks are no longer enough.
In the ever-evolving landscape of email security, Sender Policy Framework (SPF) is a cornerstone protocol for authenticating emails, defending against spoofing, and enhancing email deliverability.
This week’s cybersecurity news highlights how trust-based digital systems continue to be exploited across crypto platforms, browser ecosystems, and online marketplaces. Trust Wallet disclosed a major supply-chain attack that led to millions in stolen crypto, while researchers uncovered a long-running browser extension campaign tied to corporate espionage.
Email continues to be an essential tool for business communication, yet it faces significant risks from spoofing and phishing threats. Insights from DMARC testing enable organizations to assess the effectiveness of their email authentication and identify potential weaknesses, positioning DMARC as an essential component in safeguarding both incoming and outgoing communications.