zig-smtp/nix/ at 85c7e2581e540ec183809627bc90abfaf041df1e · jcollie.dev/zig-smtp · Tangled

jcollie.dev / zig-smtp

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An SMTP client and server library for Zig implementing RFC 5321.

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zig-smtp / nix

2 files

at 85c7e2581e540ec183809627bc90abfaf041df1e

Jeffrey C. Ollie Add the SMTPUTF8 extension (RFC 6531) 13d ago

interop-test.nix

Add the SMTPUTF8 extension (RFC 6531) The server advertises SMTPUTF8 and accepts the valueless SMTPUTF8 MAIL parameter (a value gets 501). Non-ASCII envelope addresses on MAIL and RCPT are rejected with 553 5.6.7 (RFC 6533) unless the transaction requested SMTPUTF8, and must be well-formed UTF-8 even then. The flag rides the transaction state and reaches handlers via Envelope.smtputf8. The client gains mailFromUtf8 and the CLI gains send --smtputf8, which errors cleanly when the server does not advertise the extension. The torture script and the byte-for-byte gauntlet gain the SMTPUTF8 cases, and the VM interop suite delivers with a UTF-8 sender to real Postfix (ICU-enabled in nixpkgs); 19 subtests pass. Exim interop is skipped since nixpkgs exim is built without SUPPORT_I18N. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_012HBHFhoTYa8TU9GLwobfbx

1 week ago

Add Nix package and NixOS VM interop tests nix/package.nix builds zsmtp with zig_0_16 and runs the unit tests; the tls.zig dependency is provided offline by materializing it into the project-local zig-pkg/<hash>/ directory with only the files from the dependency's paths list, so Zig's content hash matches. nix/interop-test.nix exercises zsmtp against third-party implementations in one VM: - zsmtp client -> Postfix: plaintext (25), STARTTLS (25), implicit TLS (465, submissions wrapper mode), verified via alice's maildir spool - swaks -> zsmtp server: plaintext and STARTTLS (snakeoil EC cert), verified via the server's journal Exposed as packages.zsmtp/default and checks.{zsmtp,interop}. Postfix on NixOS delivers maildir-style (mail_spool_directory has a trailing slash), so assertions grep the directory recursively, with 60s timeouts to fail fast. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_012HBHFhoTYa8TU9GLwobfbx

2 weeks ago