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.

mail email-client webmail mail-client webmail-client web-mail imap-client

Cypht - Lightweight Open Source webmail written in PHP and JavaScript

•    PHP

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All your E-mail, from all your accounts, in one place. Cypht is not your father's webmail. Unless you are one of my daughters, in which case it is your father's webmail. Cypht is like a news reader, but for E-mail. Cypht does not replace your existing accounts - it combines them into one. And it's also a news reader..

webmail webmail-client imap pop3 smtp news-reader rss atom e-mail mail-client email-client

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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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

Mailpile - Mordern Web Mail

•    Python

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Mailpile is a modern web-mail you run on your own computer. It is a personal e-mail searching and indexing tool, largely inspired by Google's popular proprietary-but-gratis e-mail service. It wants to eventually become a fast and flexible back-end for awesome personal mail clients, including webmail. It supports importing archived mails from Gmail, IMAP server, Mbox etc. It supports PGP encryption and verification of emails and recipients.

webmail web-mail mail-client mail secure-mail pop3 imap

Isotope Mail Client - Microservice based webmail client built with ReactJS and Spring

•    Java

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Isotope Mail client is a microservice based webmail client built with ReactJS and Spring. One of the main reasons to develop Isotope Mail is to learn and showcase new technologies, frameworks and libraries and how they can be used in a real life product. There is a stronger focus on achieving top quality code rather than delivering a large number of features.

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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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SharpWebMail - ASP.NET Webmail Application

•    CSharp

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SharpWebMail is an ASP.NET webmail application that is written in C#. It uses a POP3 or IMAP servers as the mailstore and sends mail through a SMTP server. It is very simple to configure (only a few settings in the web.config file). You can compose HTML messages, search your inbox, read complex mime messages, have multiple address books and much more.

webmail web-mail smtp mail-client pop3 imap mail-store

Mailu - Mail server as a set of Docker images

•    Python

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Mailu is a simple yet full-featured mail server as a set of Docker images. The project aims at providing people with an easily setup, easily maintained and full-featured mail server while not shipping proprietary software nor unrelated features often found in popular groupware.

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W3MAIL - Web Mail

•    PHP

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W3MAIL - fast and small webmail client written in PHP5. It provides easy webmail access to IMAP accounts and has very few requirements to install. Features multi-language support, simple contacts manager, MIME attachments, displays HTML messages.

Modoboa - Mail hosting made simple

•    Python

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Modoboa is a mail hosting and management platform including a modern and simplified Web User Interface. It provides useful components such as an administration panel or a webmail. Its main features include Administration panel, Amavisd-new frontend, Webmail, Per-user Sieve filters, Autoreply messages for Postfix, Graphical statistics about email traffic and lot more.

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DavMail - POP/IMAP/SMTP/Caldav to Exchange

•    Java

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DavMail is a POP/IMAP/SMTP/Caldav/Carddav/LDAP exchange gateway allowing users to use any mail/calendar client (e.g. Thunderbird with Lightning or Apple iCal) with an Exchange server, even from the internet or behind a firewall through Outlook Web Access. DavMail now includes an LDAP gateway to Exchange global address book and user personal contacts to allow recipient address completion in mail compose window and full calendar support with attendees free/busy display.

smtp-server mail-server gateway exchange-gateway pop3 imap ldap caldav carddav

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.

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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

fetchmail - TLS-enabled mail retrieval and forwarding agent

•    C

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Fetchmail is a full-featured, robust, well-documented remote-mail retrieval and forwarding utility intended to be used over on-demand TCP/IP links (such as SLIP or PPP connections). It supports every remote-mail protocol now in use on the Internet: POP2, POP3, RPOP, APOP, KPOP, all flavors of IMAP, ETRN, and ODMR. It can even support IPv6 and IPSEC.

mail-client mail retrieval mail-forward relay command-line email smtp pop3 imap

Toby Web Mail

•    PHP

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Toby is a PHP webmail application. It retreives e-mail messages from a POP or IMAP server and stores them in a MySQL database for easy archival. It is full-featured, containing many features usually found only in non-web mail clients.

Mailpile - A free & open modern, fast email client with user-friendly encryption and privacy features

•    Python

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Mailpile (https://www.mailpile.is/) is a modern, fast web-mail client with user-friendly encryption and privacy features. The development of Mailpile is funded by a large community of backers and all code related to the project is and will be released under an OSI approved Free Software license. Mailpile places great emphasis on providing a clean, elegant user interface and pleasant user experience. In particular, Mailpile aims to make it easy and convenient to receive and send PGP encrypted or signed e-mail.

e-mail security pgp search-engine tags imap-client smtp-client

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

Nwebmail

•    C

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Nwebmail is a webmail client written in ANSI C. It allows users to check and send email from any web-browser. It accesses the mail spools directly for fast and efficient mail processing. It supports MIME attachments and can import/export address books.

V-webmail

•    PHP

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V-webmail is a powerful PHP based webmail application with an abundance of features, including: Easy installation and configuration - Full support for attachments and HTML mail - Folder support (IMAP) - Filtering support (IMAP) - Quick search etc.