Email

OpenPGP data types and associated machinery

Email client

Rust library for decoding RFC 2047 MIME Message Headers.

A certificate database interface.

Cross-language temporary (disposable/throwaway) email detection library. Covers 2740 fake email providers.

IMAP protocol parser and data structures

Fast and robust e-mail parsing library for Rust

CLI to manage emails

Async IMAP client for Rust

MIME Media-type parsing

Network services for OpenPGP

E-mail delivery library with SMTP and DKIM support

Rock-solid and complete codec for IMAP

DKIM, ARC, SPF and DMARC library for Rust

SMTP mocking support for MockForge

Next-gen MTA. Secured, Faster and Greener

IMAP client for Rust

SMTP protocol parser

Rust implementation of the Emacs MIME message Meta Language (MML)

Autocrypt support

Misuse-resistant data structures for IMAP

RFC 6376 DKIM signature verifier. Parses DKIM-Signature headers, applies simple/relaxed canonicalization, verifies rsa-sha256 signatures against the selector TXT record. Pluggable DNS via DkimResolver trait.

Low level email encoding RFCs implementations

Postmark rust client

iCalendar/JSCalendar and vCard/JSContact parsing, building and conversion library for Rust

Sieve filter interpreter for Rust

A simple encoder/decoder for quoted-printable data

Resend's Official Rust SDK.

Official Rust SDK for the Lettr Email API.

A validating email type that can be serialised using Serde

Thin sans I/O abstraction over IMAP's distinct protocol flows

Cross-platform, asynchronous Rust library to manage emails

Internal core crate for `async-mailer`.

A minimalist Rust email structure library with optional support for encoding, decoding, and sending via SMTP. / 一个极简的 Rust 邮件结构库，支持可选的编码、解码及 SMTP 发送功能。

CLI tool to quickly pick mails from an m2dir

SMTP anti-spam primitives: DNS blocklist (DNSBL) queries, greylisting policy with optional Redis store, and PTR / forward-confirmed reverse DNS (FCrDNS) checks.

RFC 7208 Sender Policy Framework verifier. Pure-Rust evaluator with a pluggable DNS resolver trait; ships an optional hickory-resolver-backed implementation. Bounded DNS-lookup limits + loop detection per spec.

RFC 2047 MIME encoded-word decoder. Decodes =?charset?(B|Q)?text?= subjects + display names to UTF-8. Supports the full WHATWG Encoding charset set via encoding_rs (UTF-8, ISO-8859-*, Windows-*, ISO-2022-JP, Shift_JIS, EUC-KR, GB18030, …).

Email sending for Oxidite with SMTP support

Async SMTP mailer implementation, intended to be used as `async-mailer` generic `Mailer` or `DynMailer` trait object.

(Archived) Environment-independent SMTP client core for WASM and other constrained runtimes.

Send emails to CSV list from template on CLI

IMAP4rev1 protocol parser, response formatter, and sequence-set helpers (RFC 3501) — zero I/O.

Email content cleanup primitives: HTML sanitization, tracking-pixel detection, bulk/automated sender heuristics, quoted-reply splitting — zero I/O, no async runtime.

SMTP protocol parser, formatter, and session state machine (RFC 5321) — zero I/O, async-runtime-agnostic.

Outbound SMTP client: MX resolution, DANE/STARTTLS, response parsing — async, transport-agnostic primitives for RFC 5321 senders.

Outbound mail queue primitives: DKIM signing, DSN generation, MTA-STS lookup, retry/backoff, with a pluggable store trait and a Postgres reference implementation.

Next-gen Mail Transfer Agent (MTA) written in Rust.

Rust Interface for the Stateless OpenPGP Interface

WASI sockets adapter for wasm-smtp (wasm32-wasip2 target).