Sophos is a British security software and hardware company that offers a suite of products. It specializes in communication endpoints, encryption, network security, email security, mobile security, and unified threat management. Sophos provides solutions for businesses and consumers to protect against malware, viruses, ransomware, and other cyber threats. Configuring SPF for Sophos Sender Policy Framework…
The one-word answer to the above question is ‘yes.’ Here’s a detailed answer to it. SPF breaks when you forward emails because it encounters SPF validation issues. This happens because when you resend an email, it uses its own IP address and not the one used by the original sender. Since SPF relies on checking…
Big and small brands across the globe are falling prey to cyberattacks, and this time, it is Trello– the insanely popular project management tool. A hacker who goes by the name “Emo” has leaked 21.1 GB worth of data on a cybercrime platform. Emo claimed that he had stolen the data back in January 2024….
As you know, DMARC is based on SPF and DKIM, and the alignment of both these protocols is crucial for its processing. Identifier alignment builds a connection between the authentication flow of SPF and DKIM while also dictating the DMARC policy subjected to illegitimate emails sent from your domain. The two DMARC alignments– strict and…
Threat actors are leveraging the speed and accuracy of artificial intelligence to launch sophisticated, difficult-to-detect cyberattacks. AI has enabled them to generate malware or malicious software that transforms to dodge security filters as well as the human eye. According to a report released by Deep Instinct, 75% of security professionals were targets of cyberattacks in…
The response from the remote server was: Have you been receiving this error message lately? If so, then your DMARC has an issue – it has encountered a “554 5.7.5 Permanent Error Evaluating DMARC Policy” error when sending emails. This triggers the email delivery process, ultimately causing emails to either land in spam folders or…
ARC or Authenticated Received Chain helps overcome the shortfalls of DMARC, further strengthening the overall email security standards. ARC is an extension of the existing email authentication standards– SPF, DKIM, and DMARC– that has opened gates for validating the sending sources of emails when they pass through multiple intermediate servers. Let’s delve deeper into understanding…
When you create an SPF record, the most important step you perform is mentioning all the mail servers or IP addresses allowed to send emails as your brand’s representatives. So, when the domains in the ‘From’ address and the ‘Envelope From’ address, also known as ‘Return-Path;’ match, SPF alignment passes. In simpler words, SPF alignment…
These days, LLMs, or large language models, are making it easier for threat actors to write convincing phishing emails without leaving suspicious red flags, which are traditionally seen as hallmarks of phishing emails. As per Darktrace’s End of Year Threat Report 2023, 38% of phishing emails used novel social engineering techniques. That’s exactly why protecting…
The foremost step of creating an SPF record is enlisting all the IP addresses and mail servers that you want to add to it. These should be all the authorized sources from which you, your employees, third-party vendors, and other brand representatives can send emails. The reason you need to be careful while listing the…
