10 Proven Steps to Troubleshoot DKIM Failures Successfully
A rigorous DKIM troubleshooting workflow helps you isolate and remediate the exact cause of a DKIM fail before it cascades into deliverability issues or mail server rejection.
The use of emails has always been increasing ever since its inception in the 1960s. Business communication, circulation of academic information, conveying personal information – almost everything is passed on between individuals or organizations via emails mainly for either or all of the following reasons:
A rigorous DKIM troubleshooting workflow helps you isolate and remediate the exact cause of a DKIM fail before it cascades into deliverability issues or mail server rejection.
Financial services organizations are being hit particularly hard. The average cost of a security breach reached $6.08 million in 2024, which is 22% higher than the average cost faced by other industries. Email remains the primary entry point that attackers use.
Email authentication can feel deceptively simple—until SPF records start failing and legitimate messages land in spam. One of the most common and frustrating causes is the SPF 10 DNS lookup limit, a technical restriction that many organizations hit as they add third-party email services.
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.
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.
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…)
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.
Grasping and analyzing a DMARC report is crucial for safeguarding your domain against phishing and spoofing threats. Such a report provides valuable insights into the status of your email authentication, revealing how well your domain adheres to DMARC, SPF, and DKIM protocols.
In today’s interconnected email ecosystem, ensuring effective email deliverability and robust email security is paramount for organizations and domain owners. The Domain-based Message Authentication Reporting and Conformance (DMARC) framework provides a trusted solution to combat spoofing, phishing, and malicious actors by enabling organizations to implement advanced email authentication protocols.
No matter how advanced technology has become, email is still the backbone of business communication. That’s precisely why it is one of the most targeted and abused attack surfaces online. For any business organization, it is important to understand that poor email deliverability, phishing, and domain impersonation — all these issues stem from one major problem: an unhealthy email ecosystem.
You think you might know it all about the latest cyber scam trends, what to do when one strikes your organization, and how to evade them, so an attacker can never get to you.
In the current digital environment, email continues to be a crucial means of communication for companies, while also being a prime target for cybercriminals. As phishing schemes, spoofing, and domain impersonation increase, it’s essential to prioritize the protection of your email systems. This is where the new advancements in DMARC Wizard come into play — robust tools aimed at enhancing and streamlining your email authentication process.
As you know, DNS is the foundation of your brand’s digital presence, so if anything goes wrong with the DNS or worse, if attackers manage to exploit its vulnerabilities, your entire online presence is put at stake.
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.
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.
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.
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.
SPF is the foundation of your email authentication, as it tells the receiving servers, “these are the only servers and addresses allowed to send emails on our behalf.” So, when an email goes out from your side to a provider like Gmail or Microsoft Outlook, their servers pull out your SPF record to confirm if the email came from a server you actually approved. If the server matches one of the entries in the list, the email is delivered.
You might have been sending emails using Gmail for years now, but that’s not a good enough reason for the Email Service Provider (ESP) to let your email in, even if it feels like something’s off. Since email-based attacks are becoming so frequent and rampant, your sender reputation and good faith no longer suffice, given today’s threat landscape. That is why Gmail and other ESPs verify every email they receive before delivering it to the recipient’s inbox.