|
- [Courier MTA](http://www.courier-mta.org/) - Fast, scalable, enterprise mail/groupware server providing ESMTP, IMAP, POP3, webmail, mailing list, basic web-based calendaring and scheduling services. ([Source Code](http://www.courier-mta.org/repo.html)) `GPL-3.0` `C`
|
|
- [Courier MTA](http://www.courier-mta.org/) - Fast, scalable, enterprise mail/groupware server providing ESMTP, IMAP, POP3, webmail, mailing list, basic web-based calendaring and scheduling services. ([Source Code](http://www.courier-mta.org/repo.html)) `GPL-3.0` `C`
|
|
- [Exim](https://www.exim.org/) - Message transfer agent (MTA) developed at the University of Cambridge. ([Source Code](http://git.exim.org/exim.git)) `GPL-3.0` `C`
|
|
- [Exim](https://www.exim.org/) - Message transfer agent (MTA) developed at the University of Cambridge. ([Source Code](http://git.exim.org/exim.git)) `GPL-3.0` `C`
|
|
- [Haraka](http://haraka.github.io/) - High-performance, pluginable SMTP server written in Javascript. ([Source Code](https://github.com/haraka/Haraka)) `MIT` `Javascript`
|
|
- [Haraka](http://haraka.github.io/) - High-performance, pluginable SMTP server written in Javascript. ([Source Code](https://github.com/haraka/Haraka)) `MIT` `Javascript`
|