Browse free open source Email Clients and projects below. Use the toggles on the left to filter open source Email Clients by OS, license, language, programming language, and project status.

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  • 1

    msmtp-scripts

    Wrappers around msmtp for use as queueing MTA with extra features

    This project builds on top of the (and adds additional) scripts included with msmtp (a command-line send only email client) in order for it to act as a queueing Mail Transport Agent (by acting as the sendmail command; it also offer an minimalist SMTP server mode) with some additional features like verify-before-send (which requires you to confirm that you really do want to send email, after a required delay (cooling off period)) for those who need to think twice about the wisdom of what they send, or who tend to notice their grammar spelling errors after the fact.
    Downloads: 33 This Week
    Last Update:
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  • 2
    jwSMTP, Send email programmatically (C++ code/lib). Linux, BSD, Windows etc. Attachments, Multiple recipients, Cc/Bcc recipients supported. MX lookup or send to an SMTP server direct. LOGIN and PLAIN authentication now supported. Html or plain text forma
    Downloads: 2 This Week
    Last Update:
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  • 3

    Go Gmailer

    Go Gmailer is a java based desktop app to send emails.

    Go Gmailer is a java based desktop app to send emails.It is developed for people having slow internet connection.It is real simple and quick to send emails from this app. N.B.: It is recommended to create an app password for this app and choose remember me option to login after entering the app password so that you don't have to remember the app password for your G-mail account separately.This is JAVA based app so no doubt of security! If you have any issues with app then feel free to email us at- help.gomailer@gmail.com Like us at Facebook - www.facebook.com/gmailers
    Downloads: 1 This Week
    Last Update:
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  • 4
    Email2Fax and Fax2Email gateway for Asterisk, that could be integrated to your own existing Asterisk.
    Downloads: 0 This Week
    Last Update:
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  • 5
    IMAP protocol implementation in C++
    Downloads: 0 This Week
    Last Update:
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  • 6
    DKIM for JavaMail is a small JAR that can be easily implemented in existing Java projects using JavaMail for sending DKIM signed emails.
    Downloads: 0 This Week
    Last Update:
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  • 7
    SMTPUTF8 is email programs that can support internationlized email addresses in UTF-8. SMTPUTF8 permits the use of email addresses that include non-ASCII characters such as Chinese, Japanese, and Korean (CJK).
    Downloads: 0 This Week
    Last Update:
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  • 8
    Gmail Attachment Forward Tool Let user forward many attachment mail which already in your mailbox at same time. Very easy to move many file to other mail box.
    Downloads: 0 This Week
    Last Update:
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  • 9
    Media Lab Asia has developed an asynchronous store and forward broadband wireless system tool for delivery of messages to/from rural people.It is Capable of delivering value added digital services at places which do not have online internet connectivity
    Downloads: 0 This Week
    Last Update:
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  • 10
    Hedwig is a java-based modular communications system that handles collection and organization of multiple modes of communication, from email to instant messaging to RSS feeds. Hedwig also acts as a local server, presenting its organizational capabilities
    Downloads: 0 This Week
    Last Update:
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  • 11
    Your own mailing system (most easiest to use with zero configuration) for the entire world (available in almost all the languages of the world) which will include Mail User Agent and Mail Transfer Agent thus trying to give maximum speed while transferrin
    Downloads: 0 This Week
    Last Update:
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  • 12
    PhpMaild is an easy to configure POP/SMTP server with many options configured thru MySQL.
    Downloads: 0 This Week
    Last Update:
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  • 13
    PeMaR is a gateway, that relays outgoing email to anonymous remailer networks and receives and decodes anonymous mixminion messages. It allows the use of any email client to send and receive anonymous email. An extension is available for Thunderbird.
    Downloads: 0 This Week
    Last Update:
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  • 14
    The Secure Electronic Mail System will be a system for sending, receiving, and transporting over the internet of messages and documents in a manner that is secure, with complete and accurate identification of senders, receivers, and transport agents.
    Downloads: 0 This Week
    Last Update:
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  • 15
    UTF8SMTP is email programs (SMTP/POP3/Web-based Email Client) that can support internationlized email addresses in UTF-8.
    Downloads: 0 This Week
    Last Update:
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  • 16
    Download your Yahoo Mail messages to you local inbox!
    Downloads: 0 This Week
    Last Update:
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  • 17
    iMailist is a software allowing the sending of mails to format HTML to a whole mailing-list. The program is written in Objective-C/Cocoa and works on Mac OS 10.3
    Downloads: 0 This Week
    Last Update:
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  • 18
    This project tries to allow email over a decentralized p2p network. In the network users will not only save information that is/was of use for them, but they will also save information of others to enable the ability to send offline users emails, too.
    Downloads: 0 This Week
    Last Update:
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  • 19
    The ploinMailFactory is a mailing framework that provides extended features like a templating mechanism, multitenancy and localizaion. Internally it uses the commons-email API from Apache.
    Downloads: 0 This Week
    Last Update:
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  • 20
    An Emailer Daemon that allows 3rd Party Software to easily send emails by just generating a file And easily Seeing the result. Without the need to open up any ports and leave yourself open to attackers. Python source and frozen binaries will be provided.
    Downloads: 0 This Week
    Last Update:
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  • 21
    This project is a Symfony (http://www.symfony-project.org) Plugin wrapper to PHPMailer (https://sourceforge.net/projects/phpmailer/)
    Downloads: 0 This Week
    Last Update:
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  • 22
    Throwmail is an extremely easy to configure piece of software that takes the place of a standard MTA (sendmail) and delivers mail. It is designed to work with MUA's and is not suitable for a stand alone MTA.
    Downloads: 0 This Week
    Last Update:
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  • 23
    This is the first portable SMTP server for windows . the goal of this project is use mail() function in php on windows ( Apache Win32 like XAMPP , EasyPHP , ... ) . now you can have a SMTP server on your USB , CD-ROM or any of your softwares and use mail
    Downloads: 1 This Week
    Last Update:
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