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What is SPF Protocol?

The SPF protocol is automatically integrated by Dialog Insight if you choose sub-domain delegation. Therefore, you have no configuration to perform unless you use a dedicated IP address for your email sending (we will give you instructions in that case). For more information, consult the checklist of basic configurations for your account

SPF (Sender Policy Framework) is a protocol that determines whether an email comes from a server authorized to use a particular domain name to deliver emails by comparing its IP address with a list of addresses published in the DNS of the domain of the SMTP envelope of the email.

The following diagram provides an overview of how it works:

The SMTP envelope is like the return address on a postal envelope: it is an address that is potentially different from the address indicated in the header of the letter contained in the envelope.

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