The classic email sending library for PHP
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✉️ Send e-mails with Node.JS – easy as cake!
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MJML: the only framework that makes responsive-email easy
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:love_letter: A beautiful, fast and fully open source mail client for Mac, Windows and Linux.
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✉️ A fully featured open source mail delivery platform for incoming & outgoing e-mail
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A free simple responsive HTML email template
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Mail-in-a-Box helps individuals take back control of their email by defining a one-click, easy-to-deploy SMTP+everything else server: a mail server in a box.
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PHP Email address validator
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High performance, self-hosted, newsletter and mailing list manager with a modern dashboard. Single binary app.
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📨 A fully featured open source mail delivery platform for incoming & outgoing e-mail
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Comprehensive mailing tools for PHP
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A free & open modern, fast email client with user-friendly encryption and privacy features
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K-9 Mail – Open Source Email App for Android
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Quickly create responsive HTML emails that work on any device and client. Even Outlook.
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Responsive transactional HTML email templates
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K-9 Mail – Open Source Email App for Android
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Free and Open Source messaging and emailing app that combines common web applications into one.
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Catches mail and serves it through a dream.
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CssToInlineStyles is a class that enables you to convert HTML-pages/files into HTML-pages/files with inline styles. This is very usefull when you're sending emails.
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A cross-platform .NET library for IMAP, POP3, and SMTP.
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Tutanota is an email service with a strong focus on security and privacy that lets you encrypt emails, contacts and calendar entries on all your devices.
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Find Dates, Places, Times, and More. A .js library for parsing text for specific information.
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Self hosted newsletter app
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A few simple, but solid patterns for responsive HTML email templates and newsletters. Even in Outlook and Gmail.
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Insular email distribution - mail server as Docker images
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A fast, highly extensible, and event driven SMTP server
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HEML is an open source markup language for building responsive email.
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✉️ Composable all-in-one mail server.
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The best way to send emails in Go.
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Simple, modern & fast web-based email client
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Drag-n-Drop Email Editor Component for React.js
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An open source email campaign management tool for nonprofits
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Check if an email address exists without sending any email, written in Rust. Comes with a ⚙️ HTTP backend.
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The email boilerplate for sending out nicely formatted messages.
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Gmail JavaScript API
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Beautiful responsive email templates with code as beautiful as email templates can be
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Preview mail in the browser instead of sending.
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Create, preview (browser/iOS Simulator), and send custom email templates for Node.js. Made for @forwardemail, @ladjs, @cabinjs, @spamscanner, and @breejs.
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A Really Ruby Mail Library
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:incoming_envelope: IMAP/SMTP sync system with modern APIs
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A temporary email right from your terminal written in POSIX sh
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A Grunt workflow for designing and testing responsive HTML email templates with SCSS.
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Juice inlines CSS stylesheets into your HTML source.
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Official AngularJS web client for the ProtonMail secure email service.
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The Official Twilio SendGrid Led, Community Driven Node.js API Library
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:mailbox: SMTP Server + Web Interface for viewing and testing emails during development.
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An automated e-mail OSINT tool
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Imapsync is an IMAP transfers tool. The purpose of imapsync is to migrate IMAP accounts or to backup IMAP accounts. IMAP is one of the three current standard protocols to access mailboxes, the two others are POP3 and HTTP with webmails, webmails are often tied to an IMAP server. Upstream website is
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✉️ Teaching an Old Dog New Tricks -- IRC: #neomutt on irc.libera.chat
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modern full-featured open source secure mail server for low-maintenance self-hosted email
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PHPMailerby PHPMailer
The classic email sending library for PHP
PHP
19593Updated: 1 y ago License: Weak Copyleft (LGPL-2.1)
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nodemailerby nodemailer
✉️ Send e-mails with Node.JS – easy as cake!
JavaScript 15683Updated: 1 y ago License: Proprietary (Proprietary)
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mjmlby mjmlio
MJML: the only framework that makes responsive-email easy
JavaScript 15325Updated: 1 y ago License: Permissive (MIT)
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Mailspringby Foundry376
:love_letter: A beautiful, fast and fully open source mail client for Mac, Windows and Linux.
C 14200Updated: 1 y ago License: Strong Copyleft (GPL-3.0)
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postalby postalserver
✉️ A fully featured open source mail delivery platform for incoming & outgoing e-mail
Ruby 12755Updated: 1 y ago License: Permissive (MIT)
12755Updated: 1 y ago License: Permissive (MIT)Support
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responsive-html-email-templateby leemunroe
A free simple responsive HTML email template
HTML 12233Updated: 1 y ago License: Permissive (MIT)
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mailinaboxby mail-in-a-box
Mail-in-a-Box helps individuals take back control of their email by defining a one-click, easy-to-deploy SMTP+everything else server: a mail server in a box.
Python 12136Updated: 1 y ago License: Permissive (CC0-1.0)
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EmailValidatorby egulias
PHP Email address validator
PHP 11122Updated: 1 y ago License: Permissive (MIT)
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listmonkby knadh
High performance, self-hosted, newsletter and mailing list manager with a modern dashboard. Single binary app.
Go 10711Updated: 1 y ago License: Strong Copyleft (AGPL-3.0)
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postalby postalhq
📨 A fully featured open source mail delivery platform for incoming & outgoing e-mail
Ruby 10570Updated: 3 y ago License: Permissive (MIT)
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swiftmailerby swiftmailer
Comprehensive mailing tools for PHP
PHP 9597Updated: 1 y ago License: Permissive (MIT)
9597Updated: 1 y ago License: Permissive (MIT)Support
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Mailpileby mailpile
A free & open modern, fast email client with user-friendly encryption and privacy features
Python 8742Updated: 1 y ago License: Proprietary (Proprietary)
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k-9by thundernest
K-9 Mail – Open Source Email App for Android
Kotlin 8024Updated: 1 y ago License: Permissive (Apache-2.0)
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foundation-emailsby foundation
Quickly create responsive HTML emails that work on any device and client. Even Outlook.
HTML 7708Updated: 1 y ago License: Permissive (MIT)
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transactional-email-templatesby mailgun
Responsive transactional HTML email templates
HTML 6778Updated: 2 y ago License: Permissive (MIT)
6778Updated: 2 y ago License: Permissive (MIT)Support
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k-9by k9mail
K-9 Mail – Open Source Email App for Android
Java 6571Updated: 3 y ago License: Permissive (Apache-2.0)
6571Updated: 3 y ago License: Permissive (Apache-2.0)Support
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community-editionby ramboxapp
Free and Open Source messaging and emailing app that combines common web applications into one.
JavaScript 6348Updated: 2 y ago License: Strong Copyleft (GPL-3.0)
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mailcatcherby sj26
Catches mail and serves it through a dream.
Ruby 5948Updated: 1 y ago License: Permissive (MIT)
5948Updated: 1 y ago License: Permissive (MIT)Support
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CssToInlineStylesby tijsverkoyen
CssToInlineStyles is a class that enables you to convert HTML-pages/files into HTML-pages/files with inline styles. This is very usefull when you're sending emails.
PHP 5715Updated: 1 y ago License: Permissive (BSD-3-Clause)
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MailKitby jstedfast
A cross-platform .NET library for IMAP, POP3, and SMTP.
C# 5400Updated: 1 y ago License: Permissive (MIT)
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tutanotaby tutao
Tutanota is an email service with a strong focus on security and privacy that lets you encrypt emails, contacts and calendar entries on all your devices.
TypeScript 5347Updated: 1 y ago License: Strong Copyleft (GPL-3.0)
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Knwl.jsby benhmoore
Find Dates, Places, Times, and More. A .js library for parsing text for specific information.
JavaScript 5330Updated: 3 y ago License: Permissive (MIT)
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mailtrainby Mailtrain-org
Self hosted newsletter app
JavaScript 5249Updated: 2 y ago License: Strong Copyleft (GPL-3.0)
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Cerberusby TedGoas
A few simple, but solid patterns for responsive HTML email templates and newsletters. Even in Outlook and Gmail.
HTML 4751Updated: 1 y ago License: Permissive (MIT)
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Mailuby Mailu
Insular email distribution - mail server as Docker images
Python 4614Updated: 1 y ago License: Proprietary (Proprietary)
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Harakaby haraka
A fast, highly extensible, and event driven SMTP server
JavaScript 4443Updated: 1 y ago License: Permissive (MIT)
4443Updated: 1 y ago License: Permissive (MIT)Support
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hemlby SparkPost
HEML is an open source markup language for building responsive email.
JavaScript 4331Updated: 2 y ago License: Permissive (MIT)
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maddyby foxcpp
✉️ Composable all-in-one mail server.
Go 4009Updated: 1 y ago License: Strong Copyleft (GPL-3.0)
4009Updated: 1 y ago License: Strong Copyleft (GPL-3.0)Support
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gomailby go-gomail
The best way to send emails in Go.
Go 3938Updated: 2 y ago License: Permissive (MIT)
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rainloop-webmailby RainLoop
Simple, modern & fast web-based email client
PHP 3921Updated: 1 y ago License: Permissive (MIT)
3921Updated: 1 y ago License: Permissive (MIT)Support
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react-email-editorby unlayer
Drag-n-Drop Email Editor Component for React.js
TypeScript 3913Updated: 1 y ago License: Permissive (MIT)
3913Updated: 1 y ago License: Permissive (MIT)Support
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mail-for-goodby freeCodeCamp
An open source email campaign management tool for nonprofits
JavaScript 3838Updated: 2 y ago License: Permissive (BSD-3-Clause)
3838Updated: 2 y ago License: Permissive (BSD-3-Clause)Support
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check-if-email-existsby reacherhq
Check if an email address exists without sending any email, written in Rust. Comes with a ⚙️ HTTP backend.
Rust 3825Updated: 1 y ago License: Proprietary (Proprietary)
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Email-Boilerplateby seanpowell
The email boilerplate for sending out nicely formatted messages.
HTML 3793Updated: 2 y ago
License: No License (No License)
3793Updated: 2 y ago License: No License (No License)Support
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gmail.jsby KartikTalwar
Gmail JavaScript API
JavaScript 3625Updated: 1 y ago License: Permissive (MIT)
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antwortby InterNations
Beautiful responsive email templates with code as beautiful as email templates can be
HTML 3582Updated: 2 y ago License: Permissive (MIT)
3582Updated: 2 y ago License: Permissive (MIT)Support
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letter_openerby ryanb
Preview mail in the browser instead of sending.
Ruby 3542Updated: 1 y ago License: Permissive (MIT)
3542Updated: 1 y ago License: Permissive (MIT)Support
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email-templatesby forwardemail
Create, preview (browser/iOS Simulator), and send custom email templates for Node.js. Made for @forwardemail, @ladjs, @cabinjs, @spamscanner, and @breejs.
JavaScript 3523Updated: 2 y ago License: Permissive (MIT)
3523Updated: 2 y ago License: Permissive (MIT)Support
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sync-engineby nylas
:incoming_envelope: IMAP/SMTP sync system with modern APIs
Python 3503Updated: 3 y ago License: Strong Copyleft (AGPL-3.0)
3503Updated: 3 y ago License: Strong Copyleft (AGPL-3.0)Support
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tmpmailby sdushantha
A temporary email right from your terminal written in POSIX sh
Shell 3166Updated: 1 y ago License: Permissive (MIT)
3166Updated: 1 y ago License: Permissive (MIT)Support
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grunt-email-workflowby leemunroe
A Grunt workflow for designing and testing responsive HTML email templates with SCSS.
CSS 3011Updated: 3 y ago License: Permissive (MIT)
3011Updated: 3 y ago License: Permissive (MIT)Support
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juiceby Automattic
Juice inlines CSS stylesheets into your HTML source.
JavaScript 2969Updated: 1 y ago License: Permissive (MIT)
2969Updated: 1 y ago License: Permissive (MIT)Support
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WebClientby ProtonMail
Official AngularJS web client for the ProtonMail secure email service.
JavaScript 2917Updated: 3 y ago License: Permissive (MIT)
2917Updated: 3 y ago License: Permissive (MIT)Support
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sendgrid-nodejsby sendgrid
The Official Twilio SendGrid Led, Community Driven Node.js API Library
JavaScript 2846Updated: 2 y ago License: Permissive (MIT)
2846Updated: 2 y ago License: Permissive (MIT)Support
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maildevby maildev
:mailbox: SMTP Server + Web Interface for viewing and testing emails during development.
JavaScript 2845Updated: 3 y ago License: Proprietary (Proprietary)
2845Updated: 3 y ago License: Proprietary (Proprietary)Support
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imapsyncby imapsync
Imapsync is an IMAP transfers tool. The purpose of imapsync is to migrate IMAP accounts or to backup IMAP accounts. IMAP is one of the three current standard protocols to access mailboxes, the two others are POP3 and HTTP with webmails, webmails are often tied to an IMAP server. Upstream website is
Perl 2838Updated: 1 y ago License: Proprietary (Proprietary)
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neomuttby neomutt
✉️ Teaching an Old Dog New Tricks -- IRC: #neomutt on irc.libera.chat
C 2819Updated: 1 y ago License: Strong Copyleft (GPL-2.0)
2819Updated: 1 y ago License: Strong Copyleft (GPL-2.0)Support
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moxby mjl-
modern full-featured open source secure mail server for low-maintenance self-hosted email
Go 2681Updated: 1 y ago License: Permissive (MIT)
2681Updated: 1 y ago License: Permissive (MIT)Support
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