Mailspring - A beautiful, fast Webmail

•    Javascript

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Mailspring is built on the modern web with Electron, React, and Flux. It is designed to be extensible, so it's easy to create new experiences and workflows around email.

email mail electron osx electron-app imap webmail mail-client email-client

Mutt - Text based E-Mail Client

•    C

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Mutt is a small but very powerful text-based mail client for Unix operating systems. Its features include message threading, POP3, IMAP support, support for multiple mailbox formats (mbox, MMDF, MH, maildir), Delivery Status Notification (DSN) support, multiple message tagging, translation into at least 20 languages and lot more.

email-client email tool communication

sup - A curses threads-with-tags style email client (mailing list: supmua@googlegroups.com)

•    Ruby

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Sup is a console-based email client for people with a lot of email.Sup does in general not play nicely with other mail clients, not all changes can be synced back to the mail source. Refer to Maildir Syncback in the wiki for this recently included feature. Maildir Syncback allows you to sync back flag changes in messages and to write messages to maildir sources.

email tags lightweight mail-client email-client console

9 Cards - An Open Source Android Launcher built with Scala on Android

•    Scala

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9 Cards is an open source home launcher for Android written in Scala. This mobile application does the bulk of the work for you, organizing your apps into collections, giving you quick and easy access to the apps you need most, when you need them. 9 Cards doesn’t use common Java Android libraries for views; instead, all views are based on Macroid for Functional UI composition and the business logic in the client is built atop a simple monad transformer stack in Scala

application-launcher application-organizer mobile-app

Thunderbird - Email Client

•    C++

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Thunderbird is most popular simple e-mail, newsgroup and news feed client. It is comparable to Microsoft outlook. It supports features such as Firefox's tabbed browsing, Email search, Message archive, Spam filtering, Message grouping, SSL, TLS, POP3 and IMAP support and lot more.

mail email-client mail-client imap pop3 smtp

Claws Mail - Email Client and News Reader Based on GTK+

•    C

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Claws Mail is a GTK+ based, lightweight, and fast e-mail client and newsreader. Supports POP3, APOP, IMAP, SMTP, SMTP AUTH, NNTP, LDAP, multiple accounts, spell-checking, addressbook, SSL, GPG, filtering, i18n, & more. It is further extended by plugins. Lots of extra functionality, like an RSS aggregator, calendar, or laptop LED handling, are provided by extra plugins.

mail-client email-client mail pop3 smtp client newsreader rss-aggregator

sync-engine - :incoming_envelope: IMAP/SMTP sync system with modern APIs

•    Python

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The Nylas Sync Engine provides a RESTful API on top of a powerful email sync platform, making it easy to build apps on top of email. See the full API documentation for more details.Install the latest versions of VirtualBox and Install Vagrant.

webmail mail-client email-client

KMail - KDE Email Application

•    C++

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KMail is the email component of Kontact, the integrated personal information manager from KDE. It supports the standard mail protocols IMAP, POP3 and SMTP. It supports authentication via NTLM (Microsoft Windows) and GSSAPI (Kerberos). It has native support for inline OpenPGP, PGP/MIME, and S/MIME.

mail-client email-client mail pop3 smtp client

Citadel

•    C

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Citadel is a collaboration suite (messaging and groupware). It provides support for Email, Calendaring/Scheduling, Address books, Bulletin boards, Mailing List Server, Instant Messaging, Wiki, Multiple domain support.

mail-server groupware bulletin-board mailing-list wiki instant-messaging smtp pop3

SquirrelMail - Webmail

•    PHP

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SquirrelMail is a PHP-based Web email client. It includes built-in pure PHP support for IMAP and SMTP, and renders all pages in pure HTML 4.0 for maximum compatibility across browsers. It has strong MIME support and a flexible plugin system.

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Rainloop Webmail - Simple, modern & fast web-based email client

•    PHP

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Simple, modern & fast web-based email client.Modest system requirements, decent performance, simple installation and upgrade, no database required - all these make RainLoop Webmail a perfect choice for your email solution.

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Geary - Email Application to Send and Receive mails

•    C++

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Geary is an email application built around conversations, for the GNOME 3 desktop. It allows you to read, find and send email with a straightforward, modern interface.

mail-client email-client mail

Mail Test Agent (MTA)

•    CSharp

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Project to test email setup & connectivity. Includes modules for sending email (SSL Support), ping, port scan, & dns lookup (A, CNAME, & MX records).

client dns email mail mail-test-client

Enkive - Email Archiving and eDiscovery software

•    Java

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Enkive is a e-mail archiving and retrieval application. It captures e-mail messages as they arrive or are sent to ensure they are retained before a worker can delete them in an e-mail client. The archived mails could be searched and retrieved. Enkive can import mail from a file in mbox format. It dedupicates email and attachments, only one copy of the messages are stored.

mail email-archiving archive ediscovery

OkSocket - An blocking socket client for Android applications.

•    Java

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An blocking socket client for Android applications. The server is designed for beginners affiliated OkSocket library; beginners can install the project of the app to mobile phones, click the Connect button, the server is only familiar with communication methods and analytical way. The server does not support the heart back, not a commercial server. The server code in SocketServerDemo folder, please note that the reference was reading.

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e-volve mail client

•    Java

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An email client which basically focuses on sorting incoming emails for better email management using classification algorithms. Implemented for windows platform. The e-mail client focuses on inbox management, categorization of e-mails usig algorithms

node-imap - An IMAP client module for node.js.

•    Javascript

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node-imap is an IMAP client module for node.js.This module does not perform any magic such as auto-decoding of messages/attachments or parsing of email addresses (node-imap leaves all mail header values as-is).

imap mail email reader client

Brahmi Mail

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Brahmi Email Client is a Java based email client that aims to support features of full fledged email client. It also budles with it Java based Brahmi Input Methods available from http://brahmi.sourceforge.net

Sylpheed - Lightweight and user-friendly e-mail client

•    GTK

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Sylpheed is a simple, lightweight but featureful, and easy-to-use e-mail client. It provides intuitive user-interface, Powerful filtering and search, Junk mail control, Security features (GnuPG, SSL/TLSv1). Sylpheed supports not only the major protocols such as POP3, IMAP4rev1 and SMTP, but also NNTP (NetNews). IPv6, which is the next-generation Internet protocol, is also supported by default.

mail-client email-client mail pop3 smtp client

Hastymail - IMAP/SMTP client in PHP

•    PHP

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Hastymail is a fast, secure, rfc-compliant, cross-platform IMAP/SMTP client application written in PHP providing a clean web interface for sending and reading E-mail. It is compatible with PDAs, phones, text browsers, and all mainstream browsers. The ability to use a database for storing user settings, contacts, and plugin data, with support for both Postgresql and Mysql.

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