In SPF, fallback mechanisms come into play when an email fails SPF checks, but the recipient’s server or policies offer ways to handle or mitigate the failure. They provide you the flexibility in handling emails that fail SPF checks while still being able to maintain security through other email authentication protocols. This ensures that email…
To enable SPF for your domain, you need to add a DNS TXT record at your domain provider. When doing so, keep the following points in mind to ensure everything works efficiently and there are no security gaps. Add your SPF record Use your credentials to sign in to your domain host’s management console and…
It’s common for businesses to have multiple subdomains, but what about their security? While some domain owners completely ignore securing their subdomains, some subject them to the SPF policy of the parent domain. Yes, the latter is definitely better than the former, but even that doesn’t promise robust defense against phishing, spoofing, and ransomware attacks…
SPF, which is short for Sender Policy Framework, is an email authentication protocol that allows Microsoft 365 domain owners to prevent threat actors from succeeding in deceiving recipients by sending phishing and spoofing emails from your domain. With SPF in place, emails sent by only officially authorized IP addresses and servers linked to your domain…
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…
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…
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…
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…
When using an external email sender, like Salesforce, to send emails from addresses within your domain, it’s crucial to set up SPF and DKIM. Without these configurations, recipients’ inboxes may flag the emails as potential spoofing attempts. The impact varies: some corporate email servers automatically delete such emails, while others redirect them to the spam…
SPF or Sender Policy Framework is the first line of defense between your email ecosystem and email-based cyberattacks. It ensures that only authorized mail servers can send emails on behalf of your brand and from your domain, which helps to protect your organization from phishing and spamming. But what if this line of defense is…
