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BREAKING CHANGE(smtp-client): Replace the legacy TypeScript SMTP client with a new Rust-based SMTP client and IPC bridge for outbound delivery

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Jürgen Kunz
2026-02-11 07:17:05 +00:00
parent fc4877e06b
commit 27bab5f345
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# Changelog
## 2026-02-11 - 4.0.0 - BREAKING CHANGE(smtp-client)
Replace the legacy TypeScript SMTP client with a new Rust-based SMTP client and IPC bridge for outbound delivery
- Introduce a Rust SMTP client crate with connection handling, TLS, protocol engine, and connection pooling (new modules: connection, pool, protocol, error, config).
- Add IPC handlers and management commands in the Rust binary: sendEmail, sendRawEmail, verifySmtpConnection, closeSmtpPool, getSmtpPoolStatus and integrate a SmtpClientManager into the runtime.
- Update TypeScript bridge (RustSecurityBridge) with new types and methods (ISmtpSendOptions, ISmtpSendResult, verifySmtpConnection, sendOutboundEmail, sendRawEmail, getSmtpPoolStatus, closeSmtpPool) and rework UnifiedEmailServer to use the Rust bridge for outbound delivery and DKIM signing.
- Remove the previous TypeScript SMTP client implementation and associated tests/utilities (many ts/mail/delivery/smtpclient modules and tests deleted) in favor of the Rust implementation.
- Bump dependencies and cargo config: @push.rocks/smartrust to ^1.2.0 in package.json and add/require crates (uuid, base64, webpki-roots) in Rust Cargo files.
## 2026-02-10 - 3.0.0 - BREAKING CHANGE(security)
implement resilience and lifecycle management for RustSecurityBridge (auto-restart, health checks, state machine and eventing); remove legacy TS SMTP test helper and DNSManager; remove deliverability IP-warmup/sender-reputation integrations and related types; drop unused dependencies