roundcubemail

Roundcube Webmail
=================
[roundcube.net](https://roundcube.net)

[![Tests Status](https://github.com/roundcube/roundcubemail/actions/workflows/tests.yml/badge.svg?branch=master)](https://github.com/roundcube/roundcubemail/actions/workflows/tests.yml)

ATTENTION
---------
This is just a snapshot from the GIT repository and is **NOT A STABLE
version of Roundcube**. It's not recommended to replace an existing installation
of Roundcube with this version. Also using a separate database for this
installation is highly recommended.


INTRODUCTION
------------
Roundcube Webmail is a browser-based multilingual IMAP client with an
application-like user interface. It provides full functionality you expect
from an email client, including MIME support, address book, folder management,
message searching and spell checking. Roundcube Webmail is written in PHP and
requires the MariaDB, MySQL, PostgreSQL or SQLite database. With its plugin API it
is easily extendable and the user interface is fully customizable using skins.

The code designed to run on a webserver is mainly written in PHP and Javascript.
It includes a custom framework with an IMAP library derived from [IlohaMail][iloha]
and requires a set of external libraries (see composer.json and jsdeps.json files).


RELEASES
--------

Roundcubemail follows the semantic versioning rules for releases. For more details please read
[the RELEASE_MANAGEMENT file](docs/RELEASE_MANAGEMENT.md).


INSTALLATION
------------
For detailed instructions on how to install Roundcube webmail on your server,
please refer to the [INSTALL.md](docs/INSTALL.md) document in the same directory as this document.

If you're updating an older version of Roundcube please follow the steps
described in the [UPGRADING.md](docs/UPGRADING.md) file.


BROWSER SUPPORT
---------------
Roundcube uses jQuery 3.x (and other libs) for its client and therefore
inherits the browser support from there. This currently includes:

- Chrome: (Current - 1) and Current
- Edge: (Current - 1) and Current
- Firefox: (Current - 1) and Current, ESR
- Safari: (Current - 1) and Current
- Opera: Current


LICENSE
-------
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License (**with exceptions
for skins & plugins**) as published by the Free Software Foundation,
either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program. If not, see [www.gnu.org/licenses/][gpl].

This file forms part of the Roundcube Webmail Software for which the
following exception is added: Plugins and Skins which merely make
function calls to the Roundcube Webmail Software, and for that