Add `Authentication-Results` header for SPF

trusteddomainproject / OpenDMARC

This is the Trusted Domain Project's impementation of the DMARC protocol libary and mail filter, called OpenDMARC. A "milter" connects to unix-based mailers (originally, sendmail, but now many) and provides a standard filtering API.

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Add `Authentication-Results` header for SPF #255

Closed schildbach closed 4 months ago

schildbach commented 4 months ago

When doing SPF self-validation (SPFSelfValidate), opendmarc doesn't add an Authentication-Results header for SPF, only for DMARC. Consider adding one.

schildbach commented 4 months ago

Seems like the header is added, but if libspf cannot be found the entire check is silently skipped.