Free and open source webmail software
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.
Windows eml and mbox viewer.
Windows Mbox Viewer. Gain access to mbox archives or single eml messages. View attachments and export single mails in eml format. Access large box files such as Google Takeout or Mozilla Thunderbird Archives.
Outlook Mail Merge Attachment is a script which can be used to add an attachment to an mail merge in Microsoft Outlook.
Magic Mail Monitor3 - Windows mail checker with multiple mailboxes support, ability to preview and delete messages. Based on original code of Magic Mail Monitor from Valeriy Ovechkin.
PopTray is a mail notifier written in Delphi for the Windows platform. It sits in your tray notification area and check mail from multiple accounts on a timer interval. Preview, Delete, Rules, Plug-ins and translated into more than 30 languages.
Email Notifier For Windows
This email notifier sits in your system tray and pops up a notification when new messages arrive. Preview your email before downloading it to your mail client or launching webmail applications. Create rules to delete or change the priority of messages. This program builds upon the open source PopTray mail notifier adding many new features including Windows Vista/7/8/10 support, UTF-8 and unicode support, HTML Preview, IMAP support, TLS & SASL support, etc.
Convert Outlook and Outlook Express files to open formats
Tiny application based on readpst and dbxconv that provides a convenient GUI to convert Outlook and Outlook Express files into open standards. The program converts Outlook Express 5/6 .DBX to .EML and Outlook 2003/2007/2010 .PST to MBOX. The program runs only on Linux machines and doesn't need any Microsoft software!
SaltOS, ERP, CRM, Business Management Suite, Josep Sanz Campderrós
SaltOS is a Business Management solution 100% Cloud Computing. It integrates features like CRM (Customer Relation Management) and ERP (Enterprise Resource Planning). Moreover is it licensed as 100% free software GPL-3.0.
The continuation of the Alpine email client from University of Washington.
It is an email sender. This software can send your mass marketing bulk email to unlimited mailing list. The program can send via SMTP server, MAPI, or delivers e-mail directly without ISP's mail system. Also includes flexible address filters and rules.
NOCC is a simple and fast Webmail client which can handle POP3, SMTP, and IMAP servers. It is written with PHP5 (uses sessions), has low requirements (no database, frames). Features multi-language support, MIME attachments, displays HTML messages.
Instant Chat Messenger. E-Mail-Client. Websearch. Filetransfer.
GoldBug is a decentralized & secure communication suite that offers an integrated e-mail client, an instant messenger, and a file transfer utility. Also included is a URL-distribution and search tool. ● English Manual: https://en.wikibooks.org/wiki/Goldbug ● Deutsches Handbuch: https://de.wikibooks.org/wiki/Goldbug ● http://marjorie-wiki.de/wiki/GoldBug_(Instant_Messenger%29 ● Audit: BIG SEVEN Study https://sf.net/projects/goldbug/files/bigseven-crypto-audit.pdf ● Source: https://github.com/textbrowser/spot-on. ● Compiling-Info: https://sourceforge.net/p/goldbug/wiki/compiling/ ● GoldBug has Server-Software included and also works with the Android Chat Server "SmokeStack" under: https://smokeappope.sourceforge.io/ By 2017-09-30 the project test server has been discarded, please learn to set up your own crypto chat server or use the POPTASTIC function (crypto chat over IMAP/POP3 servers)
Ec supports reading, composing, and sorting messages in user defined folders. It can send and receive mail to and from remote POP3 and SMTP servers, and route mail using sendmail, exim, and qmail. Ec also supports MIME attachments and multiple accounts
This is an open source Email client for Borland Delphi with source code. It uses Indy controls as well as PBears HTML Viewer Component and BSALA EmbeddedWB (updated versions for Delphi 2009 are here). It is IMAP, POP3, MAPI and SMTP compatible.
Trojitá, a Qt IMAP e-mail client
The purpose is to mass mail many recipients with each recipient appearing to be the sole recipient of the email. This is just a simple web page made with the ubiquitous php mailer.
Simple Lotus Notes mail client
LNMail is a graphical user interface to access your Lotus Notes mail messages. It is mainly intended to organize the messages stored on the Lotus Notes server. Since by default the space of your Lotus Notes mail account is limited, LNMail gives you easy and seamless access to your created archives. Organization and finding mails should now be easy.
E-mail Spoofer is a tool designed for penetration testers who need to send phishing e-mails. It allows to send mails to a single recipient or a list, it supports plain text/html email formats, attachments, templates and more... Update Version 1.1: =============== * Added text conversion to Homographs for bypassing spam filters. (based on http://www.exploit-db.com/wp-content/themes/exploit/docs/20114.pdf) * Added Reply-To header * Added Sender Name Field * Added Built in User Agent * Detailed error log If you find this tool useful crypto currency donations are welcome: Bitcoin: 1Kksc9b4WZ5X36xGDgpodPVpBSozMje6ui Litecoin: LQ1JCMxo122FpJ8iKX7HsrNtjCacpTkkFW
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. This version of Hastymail is no longer being developed. We are now working on a new version, Hastymail 3, AKA, "Cypht". http://cypht.org
Add support for making Gmail the default mail application for the GNOME desktop. "Gmail" will be a choice for Mail Reader in the Preferred Applications dialog. "Mailto" links, "Send Link", etc., will be handled by Gmail.
AfterLogic WebMail Lite PHP is a free AJAX webmail application. Users can receive, view, manage, compose, and send email through web interface (IMAP and SMTP supported). Source code included.
IGSuite is a web-ajax-based Integrated Groupware Suite
IGSuite is a web-based Integrated Groupware Suite oriented to be a CRM solution. In the Suite you can find: IGWebMail, IGCalendar, IGContacts, IGArchive, IGWiki, IGTodo, IGChat, Projects, IGFax an HylaFax client, IGFileManager, IGMsg and many other.
G4J is a set of API that communicate to GMail. Use this API to login, retrive/search/browse message, download attachment and do others action on GMail account! An email application (Gmailer for java) is included to demonstrate the usage of the API.
Note! Code and issues are maintained at https://github.com/sba1/simplemail. SimpleMail is a simple to use but powerful mail client. It supports the SMTP, POP3 and IMAP (in a simple form) protocols. Furthermore, among much other features, it is capable of showing HTML mails and can identify spam mails by using a Bayesian filter.