If you have just started with SPF implementation for your domain, your SPF record can run into multiple technical issues since there are many limitations and rules involved in creating and managing it. One such rule is that the length of the SPF record should not exceed 255 characters. You can address this issue by…
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…
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…
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,…
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…
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…
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…
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…
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…
Secure email gateways, or SEGs for short, are email security solutions that have been proven effective in detecting and blocking phishing emails. If your email infrastructure is the castle gate of a kingdom, then your secure email gateway is a group of guards equipped with special skills to ward off invaders and unwanted guests (here,…
