Add MailHog and Dada Mail

README.md

@@ -223,6 +223,7 @@ _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`
 * [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`
+* [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`
 * [Postfix](http://www.postfix.org/) - Fast, easy to administer, and secure Sendmail replacement. `IPL` `C`
 * [Qmail](http://www.qmail.org/top.html) - Secure Sendmail replacement. ([Source Code](https://sources.debian.net/src/netqmail/1.06-5/)) `CC0` `C`
@@ -241,6 +242,7 @@ _MDAs - IMAP/POP3 software_
 
 _Mailing lists servers._
 
+  * [Dada Mail](http://dadamailproject.com/) - A web-based list management system that can be used for announcement lists and/or discussion lists. (Also has a "Pro" version which allows for more/larger mailing lists and branding removal.) ([Source Code](https://github.com/justingit/dada-mail)) `GPLv2` `Perl`
   * [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`