{"id":30046,"date":"2024-06-06T11:18:00","date_gmt":"2024-06-06T11:18:00","guid":{"rendered":"https:\/\/easydmarc.com\/blog\/?p=30046"},"modified":"2026-01-21T07:41:28","modified_gmt":"2026-01-21T07:41:28","slug":"spf-record-syntax-structure-and-components","status":"publish","type":"post","link":"https:\/\/easydmarc.com\/blog\/spf-record-syntax-structure-and-components\/","title":{"rendered":"SPF Record Syntax: Structure and Components"},"content":{"rendered":"\n

Understanding <\/span>what SPF is<\/span><\/a> and bringing it into use is important for technology-driven businesses as the number of phishing and spoofing attacks rise. SPF or the Sender Policy Framework record is also necessary for DMARC compliance. Both protocols work together to avert email forgery of your domain or email account.<\/span><\/p>\n\n\n\n

SPF records are complicated and can lead to implementation issues if done incorrectly. <\/span>SPF record syntax<\/b> comprises certain terminologies that can be challenging to understand. Not to worry. Below, you\u2019ll learn everything about the <\/span>SPF record structure<\/b>.<\/span><\/p>\n\n\n\n

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SPF Record: Basic Syntax<\/b><\/h2>\n\n\n\n

An SPF record is a type of DNS record that lists all the IPs permitted to send an email using a specific domain. If any server outside the list tries to send an email using that domain, it\u2019ll be marked as unauthorized and rejected by a recipient\u2019s mailbox. <\/span><\/p>\n\n\n\n

Thus, organizations must <\/span>create SPF records<\/span> for cybersecurity. <\/span><\/p>\n\n\n\n

This authentication standard is one way to protect your domain against spoofing and phishing. It also prevents your emails from getting marked as spam by recipients\u2019 mailboxes. Implementing SPF and DKIM<\/a> together with DMARC is the best way to secure your domain.<\/span><\/p>\n\n\n\n

SPF records contain instructions telling receiving servers how to validate emails from your domain and what to do when authentication fails. A specific component represents each instruction.<\/span><\/p>\n\n\n\n

Let\u2019s break down each element using some <\/span>SPF record examples.<\/span> Here\u2019s what basic <\/span>SPF record syntax <\/b>looks like:<\/span><\/p>\n\n\n\n

v=spf1 ip4=192.0.2.0 ip4=192.0.2.1 include:examplesender.net -all<\/span><\/p>\n\n\n\n

The above example indicates the record type, lists approved IP addresses and included an authorized third-party. It also tells receiving servers how to handle non-compliant emails. Here\u2019s how each element of the SPF record does this:<\/span><\/p>\n\n\n\n