Understanding DKIM’s cryptographic algorithms: RS256 vs. RS512 and emerging trends

Understanding DKIM’s cryptographic algorithms: RS256 vs. RS512 and emerging trends

When it comes to maintaining the integrity of the contents of an email and verifying that they genuinely come from a trusted sender, DKIM is the authentication protocol that most security teams trust. This email authentication standard operates on cryptographic algorithms to generate a digital signature on each email. In this way, the recipient can…

Resolving custom domain configuration issues for Azure Email Communication

Resolving custom domain configuration issues for Azure Email Communication

It’s important to properly configure your domains so that email deliverability is not hampered. If your emails are marked as spam or rejected, the recipient will not receive your message in their inbox. With correctly configured SPF and DKIM records comes the trust within recipients that they have received the email from a genuine sender…

Impersonation is the leading phishing strategy of 2024

Impersonation is the leading phishing strategy of 2024

A famous software firm, Egress, published its Phishing Threat Trends Report in October 2024, highlighting how impersonation became the most prolific phishing tactic in 2024. In the context of cybersecurity, impersonation is the act of a threat actor pretending to be a trusted individual, organization, or system. By posing as a known and reliable entity,…

The future of SPF flattening; trends and emerging practices

The future of SPF flattening; trends and emerging practices

SPF flattening prevents your SPF record from exceeding the maximum lookup limit and becoming invalid. The process works by simplifying the SPF record, eliminating the need for frequent lookups, thereby keeping it within the limit. However, with growing adoption, intricate email infrastructures, improper email authentication practices, and emerging technologies, the future of SPF flattening is…

8 cybersecurity trends that will redefine the digital landscape in 2024

8 cybersecurity trends that will redefine the digital landscape in 2024

The ever-evolving digital landscape is bringing both solace and trouble to people. Cyber advancement has made both our professional and personal lives easy. But at the same time, the invasion of threat actors at every level is indeed a serious concern. In 2023 alone, there has been a staggering 6.06 billion malware attacks across the…

Automating SPF macro management with scripting and APIs: a step-by-step guide

Automating SPF macro management with scripting and APIs: a step-by-step guide

SPF macros are placeholders used within SPF records. They dynamically dilate to specific values based on the characteristics of the email being processed, letting SPF mechanisms be more flexible and adaptive. If you have large-scale email systems, then we suggest you automate the management of SPF macros for efficient email authentication. For efficient management, consider…

How threat actors managed to send millions of phishing emails from trusted domains- explaining echo-spoofing

How threat actors managed to send millions of phishing emails from trusted domains- explaining echo-spoofing

In the first half of 2024, a simple toggle in Proofpoint’s email service allowed threat actors to send millions of hard-to-detect emails impersonating blue-chip companies. They exploited a misconfiguration in Proofpoint’s secure email gateway (SEG) to send fraudulent credit card emails. These emails bypassed security filters as they were signed and verified, looking like they…

SPF for multi-domain environments: challenges and solutions

SPF for multi-domain environments: challenges and solutions

Most large-scale businesses own multiple domains and subdomains, which are heavily used for sending emails. A multi-domain environment is more prone to email-based cyber threats. In fact, in a recent attack, malicious actors compromised more than 8,000 subdomains of top brands and institutions, including MSN, VMware, McAfee, The Economist, eBay, etc.  While using multiple domains…

Configuring SPF, DKIM, and DMARC for Brevo (formerly Sendinblue)

Configuring SPF, DKIM, and DMARC for Brevo (formerly Sendinblue)

Brevo is a digital marketing platform that caters to the marketing and communication needs of businesses. Its suite of tools and services includes email marketing, SMS marketing, marketing automation, CRM, landing pages, Facebook ads, and much more.  If you use Brevo for email marketing, then deploying SPF, DKIM, and DMARC or making changes to the…