SPF (Sender Policy Framework) and DKIM parser and checker.
Project description
emailsec
emailsec is a Python library that provides tools to parse and verify SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mail) records.
This project is still in early development.
Sender Policy Framework
RFC 7208-compliant parser and checker.
Parser
>>> from emailsec.spf.parser import parse_record
>>> parse_record("v=spf1 +a mx/30 mx:example.org/30 -all")
[A(qualifier=<Qualifier.PASS: '+'>, domain_spec=None, cidr=None),
MX(qualifier=<Qualifier.PASS: '+'>, domain_spec=None, cidr='/30'),
MX(qualifier=<Qualifier.PASS: '+'>, domain_spec='example.org', cidr='/30'),
All(qualifier=<Qualifier.FAIL: '-'>)]
Checker
>>> import asyncio
>>> from emailsec.spf.checker import check_host
>>> asyncio.run(check_host(ip="192.0.2.10", sender="hello@example.com"))
(<Result.PASS: 'pass'>, '')
Contribution
Contributions are welcome but please open an issue to start a discussion before starting something consequent.
License
Copyright (c) 2025 Thomas Sileo and contributors. Released under the MIT license.
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