Rust Email

Open-source Rust projects categorized as Email
Rust Mail SMTP Imap CLI

Top 23 Rust Email Projects

  1. stalwart

    All-in-one Mail & Collaboration server. Secure, scalable and fluent in every protocol (IMAP, JMAP, SMTP, CalDAV, CardDAV, WebDAV).

    Project mention: Calendars, Contacts and Files in Stalwart | news.ycombinator.com | 2025-05-27
  2. InfluxDB

    InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.

    InfluxDB logo
  3. himalaya

    CLI to manage emails

    Project mention: Ask HN: Is there a dev friendly alternative to Gmail, Outlook, etc.? | news.ycombinator.com | 2025-03-07

    https://github.com/pimalaya/himalaya has some, but not all, of your requirements

  4. check-if-email-exists

    Check if an email address exists without sending any email, written in Rust. Comes with a ⚙️ HTTP backend.

  5. lettre

    a mailer library for Rust

  6. DataSurgeon

    Quickly Extracts IP's, Email Addresses, Hashes, Files, Credit Cards, Social Security Numbers and a lot More From Text

  7. core

    Chatmail Rust Core library, used by Android/iOS/desktop apps, bindings and bots 📧 (by chatmail)

    Project mention: Delta Chat is a decentralized and secure messenger app | news.ycombinator.com | 2025-06-24

    For FOSS software, why not have a link to the Github repo or org prominently displayed in the title/menu bar?

    It took me a couple of clicks to find: https://github.com/deltachat

    The "Internet Standards" link points to a URL under https://github.com/deltachat/deltachat-core-rust/ but when you go there it actually redirects and you end up at https://github.com/chatmail/core which is also confusing.

  8. postsack

    Visually cluster your emails by sender, domain, and more to identify waste

    Project mention: Gmail to SQLite | news.ycombinator.com | 2025-05-09

    I build something to visualize huge amounts of email (such as from Gmail) some years ago:

    https://github.com/terhechte/postsack

  9. SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

    SaaSHub logo
  10. rust-imap

    IMAP client library for Rust

  11. mail-parser

    Fast and robust e-mail parsing library for Rust (by stalwartlabs)

  12. kumomta

    The first Open-Source high-performance MTA developed from the ground-up for high-volume email sending environments.

  13. neverest

    CLI to synchronize, backup and restore emails

  14. mail-send

    E-mail delivery library for Rust with DKIM support

  15. mailparse

    Rust library to parse mail files

  16. sendgrid-rs

    Unofficial Rust library for the SendGrid API

  17. mail-auth

    DKIM, ARC, SPF and DMARC library for Rust

  18. pigeon-rs

    Open source email automation written in Rust

  19. jmap-client

    JMAP client library for Rust

  20. mail-builder

    E-mail builder library for Rust

  21. glit

    Retrieve all mails of users related to a git repository, a git user or a git organization

  22. mailfred

    Expose services through the email infrastructure

  23. crabmail

    a static html and gemini mail archive for the 21st century, written in Rust

  24. sieve

    Sieve filter interpreter for Rust (by stalwartlabs)

  25. mail-autodiscover-autoconfig

    A docker image to deploy to have a dynamic autodiscover XML and autoconfig XML host. Supports Outlook, Thunderbird, Apple, some Android apps, and more..

  26. SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

    SaaSHub logo
NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

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Rust Email related posts

  • Delta Chat is a decentralized and secure messenger app

    2 projects | news.ycombinator.com | 24 Jun 2025
  • Calendars, Contacts and Files in Stalwart

    2 projects | news.ycombinator.com | 27 May 2025
  • Ask HN: Is there a dev friendly alternative to Gmail, Outlook, etc.?

    1 project | news.ycombinator.com | 7 Mar 2025
  • Revolutionizing Email: Stalwart Mail Server - Secure, Modern, and Easy to Use

    1 project | dev.to | 4 Mar 2025
  • Ten Years of JMAP

    2 projects | news.ycombinator.com | 23 Dec 2024
  • Himalaya – a Rust CLI to manage emails

    1 project | news.ycombinator.com | 15 Jul 2024
  • Email Command Line Application

    1 project | news.ycombinator.com | 8 Jul 2024
  • A note from our sponsor - InfluxDB
    www.influxdata.com | 24 Jun 2025
    InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now. Learn more →

Index

What are some of the best open-source Email projects in Rust? This list will help you:

# Project Stars
1 stalwart 8,760
2 himalaya 4,789
3 check-if-email-exists 4,549
4 lettre 2,045
5 DataSurgeon 833
6 core 747
7 postsack 551
8 rust-imap 522
9 mail-parser 374
10 kumomta 338
11 neverest 264
12 mail-send 241
13 mailparse 205
14 sendgrid-rs 111
15 mail-auth 102
16 pigeon-rs 79
17 jmap-client 78
18 mail-builder 65
19 glit 50
20 mailfred 31
21 crabmail 28
22 sieve 26
23 mail-autodiscover-autoconfig 25

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