1245 Open source projects that are alternatives of or similar to Mailspring

Sieve Script Editor

🐝 experimental terminal mail client, mirror of https://git.meli.delivery/meli/meli.git https://crates.io/crates/meli

Ido is a clean, simple, Polymail-inspired theme for Mailspring

A cross-platform IMAP library for .NET, supporting .Net 2.0 - 4.5, Mono and Windows Phone

Command-line interface for email management

⚡️Arduino Mail Client Library to send, read and get incoming mail notification for ESP32, ESP8266 and SAMD21 devices. The library also supported other Arduino devices using Clients interfaces e.g. WiFiClient, EthernetClient, and GSMClient.

Insular email distribution - mail server as Docker images

Recursively copy all e-mail messages and folders from one IMAP account to another.

isBizMail tells you whether a given email address belongs to a free email account provider (gmail.com, yahoo.es, yandex.ru etc) or not.

Fullstack, security focused mailserver based on OpenSMTPD for OpenBSD using ansible

a easy solution for simple IMAP email access in php

End-to-end encrypted email for the mesh networking age

MailTrap has been renamed to Sendria. Please use Sendria now, MailTrap is abandoned. MailTrap is a SMTP server designed to run in your dev/test environment, that is designed to catch any email you or your application is sending, and display it in a web interface instead of sending to real world.

An unofficial desktop client for ProtonMail done with electron nativefier

A Gatsby email *application*

mailcow: dockerized - 🐮 + 🐋 = 💕

Library to send e-mails over different transports and protocols (like SMTP and IMAP) using immutable messages and streams. Also includes SMTP server.

Delta Chat Rust Core library, used by Android/iOS/desktop apps and bindings

Emails at the heart of your business logic!

Email-based instant messaging for Desktop.

MFCMAPI

The official PHP library for Postmark.

A fully tested email parser for PHP 7.2+ (mailparse extension wrapper).

DKIM (DomainKeys Identified Mail) Key

⚙️ A GitHub Action to send an email to multiple recipients

Sendria (formerly MailTrap) is a SMTP server designed to run in your dev/test environment, that is designed to catch any email you or your application is sending, and display it in a web interface instead of sending to real world.

macOS camera recording using ffmpeg

A lightweight SMTP mail library

Golang package for send email. Support keep alive connection, TLS and SSL. Easy for bulk SMTP.

A simple (but correct) library for validating email addresses. Supports mail addresses as defined in rfc5322 as well as the new Internationalized Mail Address standards (rfc653x). Based on https://github.com/jstedfast/EmailValidation

How to get emails including there attachments and how to extract various attributes from those emails. See https://youtu.be/zFEEGkvo6O8 for a more detailed information.

A better simple reactive system monitor on macOS for your MacBook pro. Built with Electron.

Laravel MJML offers support for rendering MJML syntax into in-line HTML that can be sent within mails.

Adds email sending capability to a Nuxt.js app. Adds a server route, an injected variable, and uses nodemailer to send emails.

✳️  Electron app for generating regular expressions

Simple, modern & fast web-based email client

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

📮 Nifty Gmail desktop app for macOS, Linux & Windows

A graphical threads-with-tags style, lightweight and fast, e-mail client for Notmuch

Self-hosted server for the ProtonMail client

基于 Net.Mail 封装的发送邮件工具类。仅需一行代码，发送邮件。支持自定义邮件发出邮箱、发出方名字等。 支持SSL加密发送。 多个接收人、抄送人。支持群发独显。 支持添加附件、多个附件。 目前大部分主流邮箱全支持。

MacOS app to change the screen brightness on the menubar.

Disposable webmail server (similar to Mailinator) with built in SMTP, POP3, RESTful servers; no DB required.

Object-oriented, fully tested PHP IMAP library

📥 An email client that functions like a kanban board.

Unofficial, free and open-source Inbox by Gmail Desktop App

High performance, async IMAP client implementation

Production-ready fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) running inside a container.

Postfwd plugin for blocking international spam botnets based on geographical location of IP addresses used to login to postfix via sasl.

A third-party, open-source ProtonMail CardDAV, IMAP and SMTP bridge

Yii 2 swiftmailer extension.

Mail4Delphi uses the Indy component to send the email.

A lightweight PHP SMTP mail sender

A commandline tool to easily and privately handle your e-mail

📥 An IMAP library for clients and servers

InBrief is a personal briefing app and dashboard powered by Electron and React

Simple tool for downloading email attachments for all emails in a given folder using an IMAP client

Flashcards from Markdown. Built with React and Electron

Dovecot mail server

MailMergeLib is a mail message client library which provides comfortable mail merge capabilities for text, inline images and attachments, as well as good throughput and fault tolerance for sending mail messages.