SPF Generator

Generate and validate SPF (Sender Policy Framework) records to prevent email spoofing

SPF records help prevent email spoofing by specifying which mail servers are authorized to send emails on behalf of your domain.

Domain Configuration

Configure your domain and email sending sources

Domain Name

SPF Mechanisms

Define which servers are authorized to send email for your domain

All Mechanism

Define the default action for emails from unlisted sources

Default Action:Fail

Learn About SPF Records

Understanding SPF records and email authentication best practices

What are SPF Records?

SPF (Sender Policy Framework) records are DNS TXT records that specify which mail servers are authorized to send emails on behalf of your domain. They help prevent email spoofing and improve email deliverability.

Key Components:

Version: Always starts with "v=spf1"
Mechanisms: Define which servers can send emails (include, a, mx, ip4, ip6)
Qualifiers: Specify the action to take (+pass, -fail, ~softfail, ?neutral)
All mechanism: Defines the default policy for unlisted servers

How SPF Works:

Receiving mail server gets an email claiming to be from your domain
It looks up your domain's SPF record in DNS
It checks if the sending server's IP is authorized in the SPF record
Based on the result, it accepts, rejects, or flags the email as suspicious

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