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feat(mailer-smtp): add in-process security pipeline for SMTP delivery (DKIM/SPF/DMARC, content scanning, IP reputation)

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Jürgen Kunz
2026-02-10 22:26:20 +00:00
parent 595634fb0f
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changelog.md
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# Changelog
## 2026-02-10 - 2.3.0 - feat(mailer-smtp)
add in-process security pipeline for SMTP delivery (DKIM/SPF/DMARC, content scanning, IP reputation)
- Integrate mailer_security verification (DKIM/SPF/DMARC) and IP reputation checks into the Rust SMTP server; run concurrently and wrapped with a 30s timeout.
- Add MIME parsing using mailparse and an extract_mime_parts helper to extract subject, text/html bodies and attachment filenames for content scanning.
- Wire MessageAuthenticator and TokioResolver into server and connection startup; pass them into the delivery pipeline and connection handlers.
- Run content scanning (mailer_security::content_scanner), combine results (dkim/spf/dmarc, contentScan, ipReputation) into a JSON object and attach as security_results on EmailReceived events.
- Update Rust crates (Cargo.toml/Cargo.lock) to include mailparse and resolver usage and add serde::Deserialize where required; add unit tests for MIME extraction.
- Remove the TypeScript SMTP server implementation and many TS tests; replace test helper (server.loader.ts) with a stub that points tests to use the Rust SMTP server and provide small utilities (getAvailablePort/isPortFree).
## 2026-02-10 - 2.2.1 - fix(readme)
Clarify Rust-powered architecture and mandatory Rust bridge; expand README with Rust workspace details and project structure updates