Topics / #mail

Mail projects on GitHub

Email servers, clients and delivery tooling

As of , the most-starred Mail projects on GitHub are TrendRadar (63K stars), PHPMailer (22.3K stars) and docker-mailserver (19.6K stars). GitHub.Locker tracks 12 Mail repositories with 215.3K stars combined. The fastest-growing on October 16 was TrendRadar, with +44 stars in a day.

12Projects
215.3KStars in total
+121Stars in a day
Browse in the catalog →github.com/topics/mail ↗

Hot right now

Most stars gained in a day · Oct 16

+44

TrendRadar

sansan0/TrendRadar · ★ 63K

TrendRadar is an AI-driven public opinion and trend monitoring tool that aggregates trending topics from many Chinese platforms plus RSS feeds, filters them with keywords or AI, and pushes a smart briefing to your phone or desktop.

+17

cloud-mail

maillab/cloud-mail · ★ 14.7K

Cloud Mail is a minimalist email service built on Cloudflare: with just one domain you can create multiple mailboxes, like the big mail platforms but running on your own Cloudflare Workers at low cost.

+14

docker-mailserver

docker-mailserver/docker-mailserver · ★ 19.6K

A production-ready, fullstack but simple mail server — SMTP, IMAP, POP3, LDAP, anti-spam and anti-virus — that runs entirely inside a single Docker container.

+11

stalwart

stalwartlabs/stalwart · ★ 15.1K

Stalwart is an all-in-one, open-source mail and collaboration server written in Rust that supports email (JMAP, IMAP4, POP3, SMTP), calendaring (CalDAV), contacts (CardDAV) and file storage/sharing (WebDAV) in a single binary.

The all-time top

12 projects · by stars

  1. #1 · sansan0/TrendRadar

    TrendRadar

    TrendRadar is an AI-driven public opinion and trend monitoring tool that aggregates trending topics from many Chinese platforms plus RSS feeds, filters them with keywords or AI, and pushes a smart briefing to your phone or desktop.

    63K
  2. #2 · PHPMailer/PHPMailer

    PHPMailer

    PHPMailer is a full-featured email creation and transfer class for PHP — probably the world's most popular code for sending email from PHP, used by WordPress, Drupal, Joomla!, Yii, SugarCRM and many other open-source projects.

    22.3K
  3. #3 · docker-mailserver/docker-mailserver

    docker-mailserver

    A production-ready, fullstack but simple mail server — SMTP, IMAP, POP3, LDAP, anti-spam and anti-virus — that runs entirely inside a single Docker container.

    19.6K
  1. 4

    Mailspring

    17.9KFoundry376/Mailspring · TypeScript

    Mailspring is an open-source desktop email client for Mac, Windows, and Linux, built as a faster, leaner successor to Nylas Mail.

  2. 5

    postal

    16.9Kpostalserver/postal · Ruby

    Postal is a complete, fully featured mail server and delivery platform for websites and web servers, handling both incoming and outgoing e-mail.

  3. 6

    BillionMail

    15.9KBillionmail/BillionMail · Go

    An open-source, self-hosted mail server plus an email marketing platform: send newsletters, promotional and transactional emails from your own server, with analytics and subscriber management built in.

  4. 7

    mailinabox

    15.4Kmail-in-a-box/mailinabox · Python

    It turns a fresh machine into a complete, self-hosted email server — SMTP, IMAP, webmail, contacts and calendar sync, DNS, spam filtering and backups — with a single install command, so individuals can run their own email instead of relying on providers.

  5. 8

    stalwart

    15.1Kstalwartlabs/stalwart · Rust

    Stalwart is an all-in-one, open-source mail and collaboration server written in Rust that supports email (JMAP, IMAP4, POP3, SMTP), calendaring (CalDAV), contacts (CardDAV) and file storage/sharing (WebDAV) in a single binary.

  6. 9

    cloud-mail

    14.7Kmaillab/cloud-mail · JavaScript

    Cloud Mail is a minimalist email service built on Cloudflare: with just one domain you can create multiple mailboxes, like the big mail platforms but running on your own Cloudflare Workers at low cost.

  7. 10

    mailcow-dockerized

    13.6Kmailcow/mailcow-dockerized · JavaScript

    Mailcow is a self-hosted, dockerized mail server suite - it bundles Postfix (SMTP), Dovecot (IMAP), SOGo (webmail/groupware), Rspamd (spam filtering), ClamAV (antivirus) and ACME certificate automation into a set of containers you run yourself.

  8. 11

    penguin-mail

    463c9dev/penguin-mail · Rust

    Penguin Mail is a native Linux desktop app for mail and calendar: it handles Gmail, Microsoft (Outlook.com, Hotmail, Live, Microsoft 365) and any IMAP/SMTP account, plus Google Calendar, contacts, OpenPGP and S/MIME encryption, and an optional AI assistant.

  9. 12

    omamail

    299huacnlee/omamail · QML

    Omamail is a native email client plugin for the Omarchy desktop (built on Hyprland/Quickshell) that reads, triages and answers mail from Gmail, Outlook, HEY, JMAP and IMAP accounts inside one themed window.

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