Most popular email repositories and open source projects

nylas-mail

:love_letter: An extensible desktop mail app built on the modern web....

1475   24745   24745  

novu

The open-source notification infrastructure with fully functional embe...

1455   21282   21282  

awesome-falsehood

😱 Falsehoods Programmers Believe in

511   20902   20902  

PHPMailer

The classic email sending library for PHP

9711   19664   19664  

nodemailer

✉️ Send e-mails with Node.JS – easy as cake!

1353   15669   15669  

mjml

MJML: the only framework that makes responsive-email easy

923   15320   15320  

Mailspring

:love_letter: A beautiful, fast and fully open source mail client for...

884   14263   14263  

erpnext

Free and Open Source Enterprise Resource Planning (ERP)

5673   14222   14222  

responsive-html-email-template

A free simple responsive HTML email template

4370   12294   12294  

mailinabox

Mail-in-a-Box helps individuals take back control of their email by de...

1346   12132   12132  

EmailValidator

PHP Email address validator

190   11132   11132  

swiftmailer

Comprehensive mailing tools for PHP

840   9596   9596  

k-9

K-9 Mail – Open Source Email App for Android

2379   8087   8087  

community-edition

Free and Open Source messaging and emailing app that combines common w...

839   6348   6348  

logto

🧑‍🚀 Logto is a modern Auth0 alternative for building identity infrastr...

235   5984   5984  

alertmanager

Prometheus Alertmanager

2008   5745   5745  

MailKit

A cross-platform .NET library for IMAP, POP3, and SMTP.

766   5390   5390  

tutanota

Tutanota is an email service with a strong focus on security and priva...

500   5365   5365  

frappe

Low code web framework for real world applications, in Python and Java...

2725   5292   5292  

holehe

holehe allows you to check if the mail is used on different sites like...

595   5172   5172  

Cerberus

A few simple, but solid patterns for responsive HTML email templates a...

708   4755   4755  

Mailu

Insular email distribution - mail server as Docker images

722   4614   4614  

heml

HEML is an open source markup language for building responsive email.

187   4332   4332  

maddy

✉️ Composable all-in-one mail server.

185   4007   4007  

CocoaDebug

iOS Debugging Tool 🚀

437   3950   3950  

react-email-editor

Drag-n-Drop Email Editor Component for React.js

686   3942   3942  

mail-for-good

An open source email campaign management tool for nonprofits

523   3840   3840  

check-if-email-exists

Check if an email address exists without sending any email, written in...

270   3826   3826  

app

The SimpleLogin back-end

334   3789   3789  

email-templates

Create, preview (browser/iOS Simulator), and send custom email templat...

345   3546   3546  

h8mail

Email OSINT & Password breach hunting tool, locally or using premium s...

463   3368   3368  

awesome-newsletters

A list of amazing Newsletters

280   3358   3358  

mailwind

Use Tailwind CSS to design HTML emails.

70   3043   3043  

grunt-email-workflow

A Grunt workflow for designing and testing responsive HTML email templ...

344   3039   3039  

learn-to-send-email-via-google-script-html-no-server

:email: An Example of using an HTML form (e.g: "Contact Us" on a websi...

907   2983   2983  

0x4447_product_s3_email

📫 A serverless email server on AWS using S3 and SES

158   2977   2977  

juice

Juice inlines CSS stylesheets into your HTML source.

225   2974   2974  

mosint

An automated e-mail OSINT tool

406   2886   2886  

sendgrid-nodejs

The Official Twilio SendGrid Led, Community Driven Node.js API Library

767   2854   2854  

neomutt

✉️ Teaching an Old Dog New Tricks -- IRC: #neomutt on irc.libera.chat

280   2825   2825  

FluentEmail

All in one email sender for .NET. Supports popular senders (SendGrid,...

391   2657   2657  

hermes

Golang package that generates clean, responsive HTML e-mails for sendi...

226   2634   2634  

modoboa

Mail hosting made simple

347   2563   2563  

Papercut-SMTP

Papercut SMTP -- The Simple Desktop Email Server

253   2558   2558  

yagmail

Send email in Python conveniently for gmail using yagmail

269   2496   2496  

himalaya

CLI to manage your emails.

70   2475   2475  

anonaddy

Anonymous email forwarding

132   2316   2316  

notify

A dead simple Go library for sending notifications to various messagin...

166   2304   2304  

free-email-forwarding

The best free email forwarding for custom domains. Visit our website...

179   2298   2298  

m3o

Serverless Micro services gateway

73   2234   2234