# List of RFCs relevant to this project


## Sender Policy Framework

* [RFC 7208](https://tools.ietf.org/html/rfc7208) Sender Policy Framework (SPF) for Authorizing Use of Domains in Email, Version 1


## DKIM

* [RFC 6376](https://tools.ietf.org/html/rfc6376) DomainKeys Identified Mail (DKIM) Signatures
* [RFC 8301](https://tools.ietf.org/html/rfc8301) Cryptographic Algorithm and Key Usage Update to DomainKeys Identified Mail (DKIM)
* [RFC 8463](https://tools.ietf.org/html/rfc8463) A New Cryptographic Signature Method for DomainKeys Identified Mail (DKIM)


## DMARC

* [RFC 7489](https://tools.ietf.org/html/rfc7489) Domain-based Message Authentication, Reporting, and Conformance (DMARC)


## Related RFCs

* [RFC 5321](https://tools.ietf.org/html/rfc5321) Simple Mail Transfer Protocol
* [RFC 6008](https://tools.ietf.org/html/rfc6008) Authentication-Results Registration for Differentiating among Cryptographic Results
* [RFC 7372](https://tools.ietf.org/html/rfc7372) Email Authentication Status Codes
* [RFC 7504](https://tools.ietf.org/html/rfc7504) SMTP 521 and 556 Reply Codes
* [RFC 7601](https://tools.ietf.org/html/rfc7601) Message Header Field for Indicating Message Authentication Status
* [RFC 8553](https://tools.ietf.org/html/rfc8553) DNS AttrLeaf Changes: Fixing Specifications That Use Underscored Node Names