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…
Sender Policy Framework (SPF) is a critical email authentication protocol designed to prevent unauthorized users from sending emails on behalf of your domain. By creating and publishing SPF records in your domain’s DNS settings, you authorize specific mail servers to send email for your domain, safeguarding your digital footprint from email spoofing, phishing, and spam…
SPF stands for Sender Policy Framework— an email authentication protocol that allows only the emails sent by authorized people to get delivered to the recipient’s inbox. Deploying SPF, DKIM, and DMARC prevents your organization from email-based phishing, spoofing, and BEC attacks. Now, an SPF record is a TXT (text) record on which the entire process…
Sender Policy Framework (SPF) is a critical email authentication protocol designed to prevent email spoofing and enhance email security. An SPF record is a type of Domain Name System (DNS) record published in the DNS servers of your domain name that specifies which IP addresses are authorized senders permitted to send emails on behalf of…
An SPF record, short for Sender Policy Framework record, is a specialized DNS record configured within the domain name system to help prevent unauthorized use of your domain in email communications. Fundamentally, an SPF TXT record is a DNS TXT record type that lists all authorized mail sources permitted to send emails on behalf of…
The Sender Policy Framework (SPF) is a vital component of email security and email authentication, designed to prevent email spoofing and protect domains from unauthorized use. At its core, an SPF record is a type of DNS TXT record that specifies which email servers are authorized to send email on behalf of a domain. When…
