Major Email Service Providers like Gmail now recognize that securing your email infrastructure is no longer optional. As cyberattackers are always on the lookout for vulnerabilities, leaving even a single authentication gap in your ecosystem gives them an opening to misuse your domain. And that’s exactly why Gmail has become so strict. If your domain…
Sender Policy Framework (SPF) plays a critical role in email authentication and improving email deliverability. By configuring an SPF record—published as a DNS record—domain owners dictate which IP addresses or mail servers are authorized to send mail on behalf of their domain. Correct SPF implementation prevents email spoofing, reduces phishing, and enables stronger email security…
The Sender Policy Framework (SPF) has emerged as an indispensable component of modern email authentication, safeguarding domains from rampant abuse and helping organizations maintain their reputation in a global digital landscape threatened by increasingly sophisticated threats. As defined in RFC 7208, the SPF standard—maintained by the Internet Engineering Task Force (IETF)—enables domain owners to designate…
Email communications are an integral part of the modern business ecosystem. However, the excessive reliance on emails has made it one of the biggest vulnerabilities, too. We are living in a time where a single phishing attack can ruin the reputation and finances of an entire business. That’s exactly why simple filtering methods are inadequate…
An SPF record (Sender Policy Framework) is a crucial piece of your domain’s DNS settings that defines which mail servers are authorized to send email on behalf of your domain. Every domain owner should understand that an SPF record is more than a simple DNS entry—it’s a cornerstone of effective email authentication and is essential…
Sender Policy Framework (SPF) is a cornerstone email authentication protocol designed to combat email spoofing and enhance email security. The SPF record is a type of DNS record—specifically a TXT record—that defines which mail servers are authorized to send emails on behalf of a domain. This DNS TXT record contains SPF syntax that specifies the…
The Sender Policy Framework (SPF) is a critical email authentication technology designed to detect and prevent email spoofing—an often exploited mechanism by malicious actors to impersonate legitimate senders like victim.com or corporate ESPs such as Microsoft Office 365 or Gmail. By publishing a carefully constructed SPF record in the Domain Name System (DNS), domain owners…
Implementing SPF is basically listing all the addresses and sources that send email on your behalf. But that’s only a surface-level understanding of the protocol. In reality, SPF works on a much deeper level. It lets the receiving server check if the incoming email is really coming from where it claims to. We say this…
An SPF record, or Sender Policy Framework record, is a critical DNS record designed to prevent email spoofing and improve email authentication. Technically, an SPF record is a type of DNS TXT record published on the Domain Name System (DNS) for a specific domain. This DNS record specifies which mail sources—including IP addresses in IPv4…
Imagine typing a familiar website address into your browser, only to end up on a malicious page that looks exactly like the original. This scenario results from DNS spoofing, a deceptive technique that manipulates the Domain Name System to misdirect users or intercept communications. It is one of the many ways attackers exploit weaknesses in…
