DomainKeys Identified Mail (DKIM) is a well-established email authentication protocol designed to help organizations defend against email spoofing, phishing attacks, and business email compromise (BEC). When implemented correctly, DKIM authentication allows the recipient’s email server to verify that a signed email has genuinely originated from the stated domain and that its message content has not been tampered with during transit.
Sender Policy Framework (SPF) is a core email authentication protocol designed to enhance email security. SPF records play a crucial role in protecting domains from phishing, spoofing, and impersonation attacks by specifying which mail servers are authorized to send on behalf of a domain. When properly configured, SPF authentication significantly improves deliverability, helping emails avoid spam folders used by providers such as Gmail and Yahoo.
SPF records updated by Google: Here’s what domain owners need to know!
by DuoCircle
Does your SPF record include Google as an authorized sender? If yes, then you must be dependent on Google’s recommended ‘include:_spf.google.com’ entry to make the most out of the SPF protocol. Recently, this entry has been updated by Google. So, if your domain has outdated or custom configurations, then the latest update may cause certain issues. This blog aims to explore the update in detail and the tactics that can be used to avoid any potential email deliverability hassles.
What is MTA-STS (Mail Transfer Agent Strict Transport Security) and why do you need it?
by DuoCircle
We have heard so much about securing your outgoing emails, but the truth is, attackers can even enter your digital ecosystem through emails that are sent to your organization. This means your incoming emails are just as unsafe as your outbound ones.
DomainKeys Identified Mail (DKIM) is one of the most robust email authentication methods, helping organizations defend against email spoofing, phishing, and spam. By using cryptographic digital signatures and distributing public keys through DNS records, DKIM verifies that outgoing emails are authorized and tamper-free, which is critical for brand protection and maintaining user trust.
Cyber incidents this week hit emergency alerting, e-commerce, infrastructure, and app stacks. To start with, ransomware against the CodeRED platform disrupted local emergency notifications and exposed clear-text passwords. In another incident, a five-month breach at a major East Asian retailer affected tens of millions of customer accounts. Attackers exploited a command injection bug in Array Networks gateways, an admin takeover flaw in the King Addons WordPress plugin, and the React2Shell RCE vulnerability in React and Next.js.
Google Workspace helps businesses send emails every day, but keeping those emails safe is just as important as sending them. Gmail now strongly encourages domains to use DMARC, which tells mail servers how to treat suspicious messages. If you set it up correctly, your emails are more likely to reach inboxes and your brand stays protected.
Selecting a reliable partner for your email migration is a mission-critical decision for both individuals and organizations, whether you are overseeing a personal email migration, business email migration, or a large-scale enterprise email migration.
DomainKeys Identified Mail (DKIM) is a sophisticated email authentication protocol used to help combat email spoofing and to ensure message integrity between the email sender and the email recipient. At its core, DKIM works by adding a unique cryptographic digital signature—known as the DKIM signature—to every outgoing email. This DKIM signature is generated using a private DKIM key, which is securely stored by the email server or email sending platform.
DMARC (Domain-based Message Authentication, Reporting, and Conformance) is a crucial email security protocol that prevents email spoofing, phishing attacks, and business email compromise by ensuring that only authorized sources can send email on behalf of a domain. By leveraging SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mail), DMARC builds on these foundational email authentication methods to provide domain owners with granular control and visibility over their email traffic.
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