Sender Policy Framework (SPF) is a critical email authentication protocol designed to prevent email spoofing by specifying which mail servers are authorized to send emails on behalf of a domain. Implemented as a DNS TXT record, an SPF record holds SPF syntax directives that guide receiving mail servers—such as those operated by Microsoft, Google, and…
Companies across the globe are embracing digital transformation, which means that everything from their businesses to operations and communication now happens online. Speaking of online communication, email has certainly made things easier and seamless, but it has also opened doors for a new wave of cyber threats like email spoofing. In such attacks, cybercriminals forge…
For quite a few years, malware like ransomware, phishing, Denial-of-Service (DoS/DDoS) attacks, and Man-in-the-Middle (MitM) attacks were among the top cyberattacks. But since last year, business email compromise has been the leading cause of financial losses from cybercrime. BEC, or business email compromise, is a type of social engineering scam. Cybercriminals use this tactic to…
The growing technical stack, which includes transactional emails, marketing automation, and sales outreach tools, makes it challenging for startups to manage SPF. Imagine a fast-growing startup where, While it may look quite an efficient approach on paper, in reality, it will lead to confusion, redundancy, and misconfigurations, which ultimately affect email deliverability and brand reputation….
If you’re building AI systems that rely on large-scale data collection, chances are you’ve hit the proxy dilemma. Do you build and manage your own proxy infrastructure—or outsource it to someone who lives and breathes IP rotation, geotargeting, and CAPTCHA evasion? On paper, rolling your own proxies might seem like a cost-saving win. In reality?…
Cybersecurity experts are lately highlighting the degree to which threat actors have gone in abusing security protocols. They are devising newer, sophisticated techniques to bypass the protective layers to spoof sender email addresses to launch targeted malspam campaigns. On one side, the adoption of SPF, DKIM, and DMARC is on the rise, especially after Google,…
SPF Compression and Its Role in Email SPF compression is more than just a technical buzzword; it’s an essential practice that enhances the functionality of your email authentication strategies. The Sender Policy Framework (SPF) specifies which servers are permitted to send emails on behalf of a domain, using a simple text record that contains relevant…
Can You Have Multiple SPF Records? The crux of the matter is that you cannot have multiple SPF records for a single domain. This is not merely a suggestion; it’s rooted in the technical specifications outlined in RFC 7208, which state unequivocally that only one SPF record should exist per domain. Straying from this guideline…
The SPF protocol works efficiently only when your domain’s SPF record doesn’t have even a minor error. SPF is a highly sensitive email authentication mechanism; even a slight error can cause false positives or completely disrupt the authentication process. One way to evaluate the correctness of your SPF record is by regularly running it through…
There’s a common misconception among domain owners when it comes to email authentication protocols— we have configured SPF, DKIM, and DMARC, so we’re completely safe. They often mistake implementation for enforcement; they need to understand that there is a journey from SPF implementation to SPF enforcement. If you keep taking the two as the same,…
