@ -21,8 +21,7 @@ See [Contributing](#contributing).
- [Complete solutions](#complete-solutions)
- [Complete solutions](#complete-solutions)
- [Mail Transfer Agents](#mail-transfer-agents)
- [Mail Transfer Agents](#mail-transfer-agents)
- [Mail Delivery Agents](#mail-delivery-agents)
- [Mail Delivery Agents](#mail-delivery-agents)
- [Mailing lists](#mailing-lists)
- [Mailing lists and newsletters](#mailing-lists-and-newsletters)
- [Newsletter management](#newsletter-management)
- [Webmail clients](#webmail-clients)
- [Webmail clients](#webmail-clients)
- [IRC](#irc)
- [IRC](#irc)
- [SIP](#sip)
- [SIP](#sip)
@ -225,6 +224,7 @@ _MTAs / SMTP servers_
* [Haraka](http://haraka.github.io/) - A high-performance, pluginable SMTP server written in Javascript. ([Source Code](https://github.com/haraka/Haraka)) `MIT``Javascript`
* [Haraka](http://haraka.github.io/) - A high-performance, pluginable SMTP server written in Javascript. ([Source Code](https://github.com/haraka/Haraka)) `MIT``Javascript`
* [MailCatcher](http://mailcatcher.me/) - Ruby gem that deploys a simply SMTP MTA gateway that accepts all mail and displays in web interface. Useful for debugging or development. ([Source Code](https://github.com/sj26/mailcatcher)) `MIT``Ruby`
* [MailCatcher](http://mailcatcher.me/) - Ruby gem that deploys a simply SMTP MTA gateway that accepts all mail and displays in web interface. Useful for debugging or development. ([Source Code](https://github.com/sj26/mailcatcher)) `MIT``Ruby`
* [Maildrop](https://github.com/m242/maildrop) - Disposable email SMTP server, also useful for development. `MIT``Scala`
* [Maildrop](https://github.com/m242/maildrop) - Disposable email SMTP server, also useful for development. `MIT``Scala`
* [MailHog](https://github.com/mailhog/MailHog) - Small Golang executable which runs an SMTP MTA gateway that accepts all mail and displays in web interface. Useful for debugging or development. `MIT``Go`
* [OpenSMTPD](https://opensmtpd.org/) - Secure SMTP server implementation from the OpenBSD project. ([Source Code](http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/smtpd/)) `ISC``C`
* [OpenSMTPD](https://opensmtpd.org/) - Secure SMTP server implementation from the OpenBSD project. ([Source Code](http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/smtpd/)) `ISC``C`
* [Postfix](http://www.postfix.org/) - Fast, easy to administer, and secure Sendmail replacement. `IPL``C`
* [Postfix](http://www.postfix.org/) - Fast, easy to administer, and secure Sendmail replacement. `IPL``C`
* [Dovecot](http://www.dovecot.org/) - IMAP and POP3 server written primarily with security in mind. ([Source Code](https://github.com/dovecot/core)) `MIT/LGPLv2``C`
* [Dovecot](http://www.dovecot.org/) - IMAP and POP3 server written primarily with security in mind. ([Source Code](https://github.com/dovecot/core)) `MIT/LGPLv2``C`
_Mailing lists servers and mass mailing software - one message to many recipients._
* [Dada Mail](http://dadamailproject.com/) - A web-based list management system that can be used for announcement lists and/or discussion lists. ([Source Code](https://github.com/justingit/dada-mail)) `GPLv2``Perl`
* [Mailman](https://www.gnu.org/software/mailman/) - The Gnu mailing list server. `GPL``Python`
* [Mailman](https://www.gnu.org/software/mailman/) - The Gnu mailing list server. `GPL``Python`
* [Sympa](https://www.sympa.org/) - A mailing list manager. `GPLv2``Perl`
#### Newsletter management
_Mass mailing software - one message to many recipients_
* [Mailtrain](https://mailtrain.org/) - self hosted newsletter application built on Node.js (v5+) and MySQL (v5.5+ or MariaDB). ([Source Code](https://github.com/andris9/mailtrain)) `GPLv3``Node.js`
* [Mailtrain](https://mailtrain.org/) - self hosted newsletter application built on Node.js (v5+) and MySQL (v5.5+ or MariaDB). ([Source Code](https://github.com/andris9/mailtrain)) `GPLv3``Node.js`
* [Mautic](https://www.mautic.org/) - Mautic is marketing automation software (email, social & more). ([Source Code](https://github.com/mautic/mautic)) `GPLv3``PHP`
* [Mautic](https://www.mautic.org/) - Mautic is marketing automation software (email, social & more). ([Source Code](https://github.com/mautic/mautic)) `GPLv3``PHP`
* [phpList](https://phplist.org) - Newsletter and email marketing with advanced management of subscribers, bounces, and plugins. ([Source Code](https://github.com/phpList/)) `AGPLv3``PHP`
* [phpList](https://phplist.org) - Newsletter and email marketing with advanced management of subscribers, bounces, and plugins. ([Source Code](https://github.com/phpList/)) `AGPLv3``PHP`
* [Sympa](https://www.sympa.org/) - A mailing list manager. `GPLv2``Perl`