Add license and more description

README.md

@@ -311,7 +311,7 @@ _CalDAV or CardDAV clients._
 
 _Simple deployment of a mail server, e.g. for inexperienced or impatient admins._
 
-- [wildduck](https://wildduck.email/) - Opinionated email server ([Source Code](https://github.com/nodemailer/wildduck)) `EUPL-1.2` `Node.js`
+- [wildduck](https://wildduck.email/) - Scalable no-SPOF IMAP/POP3 mail server ([Source Code](https://github.com/nodemailer/wildduck)) `EUPL-1.2` `Node.js`
 - [docker-mailserver](https://github.com/tomav/docker-mailserver) - Fullstack but simple mail server (smtp, imap, antispam, antivirus, etc.). Only configuration files, no SQL database. Keep it simple and versioned. Easy to deploy and upgrade. `MIT` `Docker`
 - [Inboxen](https://inboxen.org) - Inboxen is a service that provides you with an infinite number of unique inboxes. ([Source Code](https://github.com/Inboxen/Inboxen)) `GPL-3.0` `Python`
 - [homebox](https://github.com/progmaticltd/homebox) - Suite of Ansible scripts to deploy a fully functional mail server on Debian. Unobtrusive and automatic as much as possible, focusing on stability and security. `GPL-3.0` `Shell`
@@ -1523,6 +1523,7 @@ See also [Documentation Generators](#documentation-generators), [Wikimatrix](htt
 - `DPL` - [Devblocks Public License 1.0](https://cerb.ai/license/)
 - `ECL-2.0` - [Educational Community License, Version 2.0 ](http://opensource.org/licenses/ECL-2.0)
 - `EPL-1.0` - [Eclipse Public License, Version 1.0](https://www.eclipse.org/legal/epl-v10.html)
+- `EUPL-1.2` - [European Union Public License 1.2](https://joinup.ec.europa.eu/sites/default/files/inline-files/EUPL%20v1_2%20EN(1).txt)
 - `GFDL-1.1-only` - [GNU Free Documentation License v1.1](https://spdx.org/licenses/GFDL-1.1-only.html)
 - `GFDL-1.1-or-later` - [GNU Free Documentation License v1.1](https://spdx.org/licenses/GFDL-1.1-or-later.html)
 - `GFDL-1.2-only` - [GNU Free Documentation License v1.2](https://spdx.org/licenses/GFDL-1.2-only.html)