Email 543 crates

mailledger-coreCore business logic and services for MailLedger email client138MITEmail rusmes-pop3Async POP3 server for RusMES — RFC 1939 compliant with APOP, STLS (STARTTLS), and CAPA extension support138Apache-2.0AsynchronousEmail email-transport-resendResend transport implementation for email-transport138MITEmailNetwork programming avila-cellAdvanced email protocol cells - SMTP/POP3/IMAP with MIME multipart, Base64, authentication, HTML emails - First digital life form132MIT OR Apache-2.0EmailNetwork programming misfinAn embeddable implementation of the Misfin mail protocol: identities, gemmail, a sending client, and a receive server. Not the…130MITEmailNetwork programming bltzA fast terminal email client128MITCommand line utilitiesEmail use-email-addressEmail address and mailbox primitives for RustUse128MIT OR Apache-2.0Data structuresEmail mailbridgeProvider-neutral transactional email library for Rust services125MITAPI bindingsEmail ferrum-emailComponent-based email framework for Rust — type-safe templates, cross-client rendering, unified sending API. The complete SDK.124MIT OR Apache-2.0EmailWeb programming mailrs-spfRFC 7208 Sender Policy Framework verifier. Pure-Rust evaluator with a pluggable DNS resolver trait; ships an optional…123Apache-2.0 OR MITEmailNetwork programming wasm-smtp-wasiWASI sockets adapter for wasm-smtp (wasm32-wasip2 target).120Apache-2.0EmailNetwork programming mailbreezeOfficial Rust SDK for MailBreeze - Email Marketing & Transactional Email Platform120MITAPI bindingsEmail wae-emailWAE Email - 邮件服务抽象层，支持 SMTP/Sendmail/Direct119MITEmailNetwork programming euromailOfficial Rust SDK for EuroMail transactional email service118MITAPI bindingsEmail mailrs-arcRFC 8617 Authenticated Received Chain (ARC) — header parsing, chain extraction, and signature verification + sealing. ARC extends…116Apache-2.0 OR MITCryptographyEmail lettrOfficial Rust SDK for the Lettr Email API.115MITEmailWeb programming slashmailCLI for searching, managing, and bulk-operating on emails via IMAP113MIT OR Apache-2.0Command line utilitiesEmail mailrs-mimeRFC 2045/2046 MIME body parser. Walks the multipart tree, decodes Content-Transfer-Encoding (base64, quoted-printable, 7bit,…112Apache-2.0 OR MITEmailEncoding srmilterA Rust library for building mail filter (milter) daemons that integrate with Postfix112EUPL-1.2EmailNetwork programming email-sdk-coreCore client, provider, plugin, retry, and middleware primitives for email-sdk.109MITAPI bindingsEmail gmail-auto-labelAutomatic Gmail labeling tool powered by gog and codex109MITCommand line utilitiesEmail eoka-emailIMAP helpers for email-based automation (OTP codes, verification links)108MITDevelopment toolsEmail flaremail-rsRust SDK for Cloudflare Email Service108MITAPI bindingsEmail mailrs-icalRFC 5545 (iCalendar) parser, serializer, and iTIP semantics — zero I/O, hand-rolled, with VTIMEZONE + RRULE support.108Apache-2.0 OR MITDate and timeEmail thrumA terminal email client107MITCommand line utilitiesEmail mbox2dbA fast, simple tool to convert large mbox email archives into optimized SQLite databases102MITCommand line utilitiesDatabase interfaces email-kitConvenience facade for the email-rs crates101MITAsynchronousEmail use-email-headerEmail header name, value, and field primitives for RustUse97MIT OR Apache-2.0Data structuresEmail mailrs-delivery-executorGroup-commit delivery executor on top of mailrs-maildir 1.2's deliver_batch. Accumulates per-path delivery requests from…96Apache-2.0 OR MITAsynchronousEmail use-email-envelopeSMTP envelope identity and path primitives for RustUse95MIT OR Apache-2.0Data structuresEmail mailrs-dmarcDMARC (RFC 7489) aggregate report generation: result recording, XML report builder, report-mail formatter, rua extraction.…94Apache-2.0 OR MITEmail dispocheckFast, production-ready disposable email detection for Rust with compile-time optimized lookups.93MIT OR Apache-2.0Development toolsEmail resend-mcpMCP server for the Resend email API92Apache-2.0EmailNetwork programming is-burner-emailFast, offline burner / disposable email detection.82MITEmail manteau-macrosProcedural macros for the manteau email-building crate. Not intended for direct use — depend on `manteau` and import macros from…81MIT OR Apache-2.0EmailTemplate engine use-mailtomailto URI primitives for RustUse81MIT OR Apache-2.0Data structuresEmail use-email-messageEmail message structure primitives for RustUse81MIT OR Apache-2.0Data structuresEmail use-email-idEmail Message-ID and threading primitives for RustUse80MIT OR Apache-2.0Data structuresEmail mailrs-sieveClean delivery-action wrapper over the native `mailrs-sieve-core` RFC 5228 Sieve engine (Apache-2.0 OR MIT, no AGPL). Flattens…78Apache-2.0 OR MITEmailFilesystem fakemail-cliLightweight, stateful, and zero-async command line interface for FakeMail.net77MITCommand line utilitiesEmail mailrs-mailboxMailbox metadata storage abstraction for Rust IMAP/JMAP servers: MailboxStore trait + PostgreSQL reference impl + in-memory test…77Apache-2.0 OR MITDatabase interfacesEmail alun-pluginAlun plugins: notification (email), cache, async-task, scheduler77Apache-2.0EmailWeb programming rmimeparserPush-based MIME and RFC 5322 message parser and writer (gumdrop-style)75LGPL-2.1-or-laterEmailParser implementations ffrelayCommand-line interface for Firefox Relay email forwarding service74MIT OR Apache-2.0Command line utilitiesEmail proton-coreUnofficial pure-Rust Proton Mail SDK: SRP authentication, OpenPGP end-to-end crypto, and the mail API (transport, send/read,…74MITAPI bindingsAuthentication sendoutA library for sending emails from you application72MPL-2.0Email envelopwdA robust, lightweight library for parsing and validating email addresses and mailboxes with sqlx and lettre integration.66Apache-2.0Data structuresEmail agentmail-rsUnofficial typed Rust client for AgentMail (agentmail.to), the email API for agents.65MIT OR Apache-2.0API bindingsAsynchronous use-emailFeature-gated facade crate for RustUse email primitives64MIT OR Apache-2.0Data structuresEmail daaki-imapAn IMAP4rev1/IMAP4rev2 async client library63MITAsynchronousEmail jmap-mimeMIME-to-JMAP adapter: converts mime_tree parsed output to jmap-mail-types body structures63MIT OR Apache-2.0EmailEncoding herald-jmap-cliHerald — an opinionated JMAP CLI for Stalwart Mail Server63MIT OR Apache-2.0Command line utilitiesEmail rusmes-acmeACME v2 client for RusMES — automatic TLS certificate provisioning and renewal with HTTP-01 and DNS-01 challenge support via…60Apache-2.0AsynchronousEmail daaki-smtpAn async SMTP client library59MITAsynchronousEmail mailbourneA Rust-native mail server and library — single binary, built-in doctor for DNS, DKIM, and deliverability.59MIT OR Apache-2.0EmailNetwork programming rok-notificationMulti-channel notifications for the rok ecosystem59MITEmailWeb programming yamimeComplete Rust port of Go's mime package with async-first design58MIT OR Apache-2.0AsynchronousEmail rusmes-loadtestMulti-protocol load testing tool for RusMES — concurrent SMTP, IMAP, and JMAP load generation with HDR histogram latency…57Apache-2.0AsynchronousEmail plunk-rsAsync Rust client for the Plunk transactional email API56MITAPI bindingsEmail sendgrid-coreTyped, validated Rust client for the SendGrid v3 API — all 391 operations, generated from the official OpenAPI spec. The runtime…55MIT OR Apache-2.0API bindingsEmail rusmes-serverMain server binary for RusMES — orchestrates SMTP, IMAP, POP3, and JMAP protocol servers with unified configuration, graceful…55Apache-2.0AsynchronousEmail sevkRust SDK for Sevk API55MITAPI bindingsEmail sieve-formSieve email filter language (RFC 5228 + RFC 5229) on a uniform form representation55MITEmailParser implementations use-dmarcDMARC policy metadata primitives for RustUse55MIT OR Apache-2.0Data structuresEmail armature-mailEmail sending with SMTP, templates, and provider integrations for Armature54Apache-2.0EmailWeb programming rusmes-searchFull-text search for RusMES — Tantivy-backed search index with trait-based abstraction for indexing, querying, and deleting mail…54Apache-2.0EmailParser implementations ruzorRuzor, a 1:1-compatible Rust port of the Pyzor UDP client and server54GPL-3.0-onlyCommand line utilitiesEmail wasm-smtp-componentWASM Component Model interface for wasm-smtp (wasm32-wasip2 target).53Apache-2.0EmailNetwork programming sutegi-mailMail for sutegi: an Email builder with RFC 2822/MIME rendering, a one-method Transport seam for third-party providers, and…53MITEmailWeb programming use-spfSPF record metadata primitives for RustUse53MIT OR Apache-2.0Data structuresEmail use-dkimDKIM signature metadata primitives for RustUse53MIT OR Apache-2.0Data structuresEmail rusmes-cliAdministrative CLI tool for RusMES — user/mailbox/queue management, backup, restore, migration, metrics inspection, and…52Apache-2.0EmailNetwork programming imapmaildirReceive mail by syncing remote imap mailboxes with local maildir directories.50GPL-3.0-or-laterCommand line utilitiesEmail uuencoding-multiMulti-part UUencoded Usenet/email post reassembly49MIT OR Apache-2.0EmailEncoding protonmail-cliUnofficial command-line client for Proton Mail (login, read/send with end-to-end OpenPGP, drafts, filters, contacts, local…47MITCommand line utilitiesEmail mailrs-postmasterEmail-domain DNS health checks: MX, SPF, DKIM, DMARC, MTA-STS, TLS-RPT, BIMI, DANE, PTR — async, zero I/O outside the resolver.46Apache-2.0 OR MITCommand line utilitiesEmail imapctlScriptable IMAP client for the shell46MIT OR Apache-2.0Command line utilitiesEmail training-libtraining crates.io lib46MITEmail sendgrid-mcpModel Context Protocol (MCP) server exposing all 391 SendGrid v3 API operations to AI agents through a search → describe → invoke…45MIT OR Apache-2.0API bindingsEmail email-sdkRust email SDK with client, plugins, retries, fallbacks, SMTP, and all provider integrations.44MITAPI bindingsEmail cochranblock-mail-sharedShared API types for cochranblock-mail server and frontend44UnlicenseEmailNetwork programming mailledgerCross-platform desktop email client with custom IMAP implementation44MITEmailGUI proton-mcpModel Context Protocol (MCP) server exposing Proton Mail to LLM agents, backed by proton-core and a protonmail-cli login session.44MITCommand line utilitiesEmail emailaddrType-safe, zero-copy, validated email addresses with generic storage, IDNA domain support, and no_std/no-alloc compatibility.44MIT OR Apache-2.0EmailInternationalization (i18n) postcrate-coreEmbeddable SMTP capture engine: server, multi-mailbox lifecycle, chaos simulation, SQLite persistence, HTTP API.44MITDevelopment tools::TestingEmail emailitThe official Rust SDK for the Emailit Email API43MITAPI bindingsEmail parcelwingOfficial Rust SDK for the Parcel Wing API.43MITAPI bindingsEmail sendemailA Rust CLI tool for sending templated HTML emails via SMTP with batch processing, mail merge, and multi-profile support.42GPL-3.0Command line utilitiesEmail mailcrushA high-efficiency mail lossless compression tool that deconstructs emails for maximum compression42GPL-3.0-or-laterCommand line utilitiesCompression restate-emailRestate email worker contracts and service adapter41MITAsynchronousEmail sendryOfficial Rust crate for the Sendry email API40MITAPI bindingsEmail sendpulseSecure, typed, and deliverability-aware Rust SDK for SendPulse40MIT OR Apache-2.0API bindingsEmail aimxSMTP for AI agents. No middleman. Self-hosted mail server (AI Mail Exchange) with built-in MCP.39MITArtificial intelligenceCommand line utilities emailctlA small email CLI with Gmail OAuth first-class support and generic IMAP/SMTP accounts.38MIT OR Apache-2.0Command line utilitiesEmail use-email-authEmail authentication metadata facade for RustUse38MIT OR Apache-2.0Data structuresEmail pterPlain Text Email Renderer — convert HTML email bodies into readable markdown37MITEmailParser implementations sendmuxOfficial async Rust SDK for the Sendmux Sending, Mailbox, and Management APIs.37MITAPI bindingsEmail use-smtpSMTP protocol vocabulary primitives for RustUse37MIT OR Apache-2.0Data structuresEmail lettre-catEmail sending built on comp-cat-rs: composable, resource-safe, lazy effects over lettre37MITEmailRust patterns mailrs-sieve-coreNative RFC 5228 Sieve interpreter — tokenizer + parser + evaluator. Built from the spec, no AGPL dependencies. The internal…37Apache-2.0 OR MITEmailParser implementations dmarcguardOfficial Rust SDK for the DMARCguard API (https://dmarcguard.io) - DMARC, SPF, and DKIM monitoring and reporting.36Apache-2.0API bindingsAuthentication stalwart-liteStalwart Mail and Collaboration Server36AGPL-3.0-onlyEmail yencoding-multiMulti-part yEnc Usenet article reassembly34MIT OR Apache-2.0EmailEncoding rust_smtp_utilsReusable SMTP helper crate for Rust (lettre-based) with STARTTLS, timeout, and retry.33MITEmail darcatA command-line tool to view DMARC Aggregate Reports in human-readable form33Apache-2.0Command line utilitiesEmail sendgrid-cliAgent-friendly command-line interface for the SendGrid v3 API: search, describe, dry-run, and safely invoke all 391 operations.…33MIT OR Apache-2.0Command line utilitiesEmail kiss-mailA KISS (Keep It Simple, Stupid) SMTP, IMAP, and POP3 mail server29MITCommand line utilitiesEmail protonmail-clientIMAP client library for Proton Mail via Proton Bridge29MITEmailNetwork programming io-gmailGmail REST API client library for Rust29MIT OR Apache-2.0API bindingsEmail xpineEmail client written in Rust. Fast, efficient, with modern features. Tested with MacOS & Linux.28MITEmail tokio-mimeComplete Rust port of Go's mime package with async-first design27MIT OR Apache-2.0AsynchronousEmail postarA local email filtering service25MITCommand line utilitiesEmail temp_mail_orgRust client of https://temp-mail.org to create disposable email.24MIT OR Apache-2.0API bindingsDevelopment tools::Testing unosendOfficial Rust SDK for Unosend - Email API for developers24MITAPI bindingsEmail sentdOfficial Rust SDK for the SENTD Email API23MITAPI bindingsEmail daaki-pop3An async POP3 client library23MITAsynchronousEmail wasix-sendmailA POSIX-compliant sendmail implementation for WASIX23AGPL-3.0Command line utilitiesEmail stalwartA rewrite of Stalwart Mail Server as an embeddable Rust crate.22AGPL-3.0-onlyEmail nexo-rs-extension-marketingEmail marketing extension for nexo-rs — lead state, identity resolution, AI drafts, multi-tenant CRM.21MIT OR Apache-2.0Command line utilitiesEmail mailghostA friendly disposable Mail.tm inbox for your terminal21MITCommand line utilitiesEmail email-sdk-provider-lettermintLettermint provider for email-sdk.21MITAPI bindingsEmail email-sdk-provider-jetemailJetEmail provider for email-sdk.21MITAPI bindingsEmail unitpostName reserved for Unitpost. Official Rust SDK will be published here.21MITEmail jetemailRust SDK for the JetEmail API20MITAPI bindingsEmail sendbyte-sdkAn unofficial Rust SDK for SendByte, the email API for Africa.20MITAPI bindingsEmail email-sdk-provider-brevoBrevo provider for email-sdk.20MITAPI bindingsEmail email-sdk-provider-iterableIterable provider for email-sdk.20MITAPI bindingsEmail email-sdk-provider-cloudflareCloudflare Email Routing provider for email-sdk.20MITAPI bindingsEmail email-sdk-provider-loopsLoops provider for email-sdk.20MITAPI bindingsEmail pauboxAsync Rust SDK for the Paubox Email and Forms APIs (HIPAA-compliant)19Apache-2.0API bindingsEmail mailkiteOfficial MailKite SDK for Rust — inbound email → webhook, sending, templates, broadcasts, at-rest encryption, and webhook…18MITAPI bindingsEmail mailrs-dnsLight hickory-resolver wrapper exposing the 5 DNS query types email servers actually use (TXT, A, AAAA, MX, PTR). NXDOMAIN mapped…18Apache-2.0 OR MITEmailNetwork programming remailA minimal, self-hosted email server written from scratch in Rust. In design; the first functional release will cover inbound SMTP.18MITEmailNetwork programming mailblastrOfficial Rust SDK for the MailBlastr email API — send transactional and marketing email from your own verified domain.18MITAPI bindingsEmail venumzmailRust SDK for the venumzmail temp email API18ISCAPI bindingsEmail cochranblock-mailSovereign SMTP/IMAP/HTTP mail server for cochranblock.org. Single binary, zero cloud.17UnlicenseEmailNetwork programming cybertempRust SDK for CyberTemp — disposable email inboxes for testing, automation, OTP flows, and AI agents.17MITAPI bindingsEmail anypostOfficial Rust SDK for the Anypost email API.16MITAPI bindingsEmail axene-mailerAsync Rust SDK for the Axene Mailer API (send email, manage domains, contacts, suppressions, templates, and webhooks).15MITAPI bindingsEmail restate-email-binRunnable Restate email worker binary14MITAsynchronousEmail hopf-mailboxIMAP-level mailbox storage (mbox + Maildir++) for Hopf12LGPL-2.1-or-laterEmailFilesystem hopf-smtpSMTP / SMTPS server and client for Hopf (Gumdrop smtp port)10LGPL-2.1-or-laterEmailNetwork programming mail-sluiceFlow-control for ngx_mail_auth_http_module0AGPL-3.0-or-laterEmailNetwork programming