authheaders 0.16.3

A library wrapping email authentication header verification and generation.

Python module for generating email authentication headers: Authheaders can generate both authentication results header fields and DKIM/ ARC signatures. It can perform DKIM, SPF, and DMARC validation, and the results are packaged into a single Authentication-Results header. It can also DKIM and ARC sign messages and output the corresponding signature header fields.