Added Email Marketing category and phpList app

README.md

@@ -231,6 +231,12 @@ _Mailing lists servers._
   * [Mailman](https://www.gnu.org/software/mailman/) - The Gnu mailing list server. `Python` `GPL`
   * [Sympa](https://www.sympa.org/) - A mailing list manager. `Perl` `GPL`
 
+#### Email marketing
+
+_Mass mailing software - one message to many recipients_
+
+  * [phpList](https://phplist.org) - Newsletter and email marketing with advanced management of subscribers, bounces, and plugins `AGPLv3` `PHP`
+
 
 #### Webmail clients
 
@@ -1070,4 +1076,5 @@ The list of contributors can be found below
     1	stevesbrain <stevesbrain@users.noreply.github.com>
     1	ttoups <ich@timotoups.de>
     1	wxcafé <wxcafe@wxcafe.net>
+    1	Sam Tuke <mail@samtuke.com>