How To Install Roundcube Webmail 1.4 on Debian 10

Roundcube release version 1.4 which brings a brand new responsive layout, Elastic. Roundcube has been around for a long time, even the most famous control panel cPanel, Directadmin installed Roundcube by default. Many people may already move from managing their own mail server to hosted versions such as GSuite, Office 365, Fastmail etc but for some people maintain their own mail server still a preferable choice than using 3rd party mail server which we don’t have control.

Few notable Roundcoube 1.4 improvement
– Redis and Memcached support
– Resend email bounce
– Responsive skin

Setup DNS

Set up A record for subdomain or domain that will be used for Roundcube, for example, I’ll use This step is mandatory if you want to access the webmail by https.

First of all, update and upgrade to the latest version of Debian packages

sudo apt update; sudo apt upgrade -y

Install MariaDB

sudo apt install mariadb-server -y

Create Roundcube User and Database

Login as MySQL root

sudo MySQL

Create database

create database roundcube;

Create a new user and assign the Roundcoube database access


Change the STRONGPASSWORD to a more secure password. in this setup we use roundcube for both user database and database name. Write it down, we’ll need the credential later when installing Roundcube.
roundcube create database

Install PHP

sudo apt-get install php php-cli php-gd php-intl php-fpm php-curl php-imagick php-mysql php-zip php-xml php-mbstring php-bcmath -y

Set the timezone in php.ini

sudo sed -i 's/;date.timezone =/date.timezone = Europe\/Amsterdam/g' /etc/php/7.3/fpm/php.ini

Restart PHP FPM

sudo systemctl restart php7.3-fpm

Install SSL Letsencrypt

We’ll use certbot the official Lets Encrypt

sudo apt install certbot -y

Generate SSL for domain

sudo certbot -d webmail.DOMAIN --agree-tos -m EMAIL@DOMAIN

Install NGINX

sudo apt install nginx -y

Create Server Block For Nginx

Create a new server block for nginx, let name it /etc/nginx/sites-enabled/ Replace with your own domain name.

server {
    listen 80;
    return 301 https://$host$request_uri;
server {
    listen 443 ssl http2;
    root /var/www/html/roundcubemail;
    index index.php index.htm index.html;
    ssl_certificate /etc/letsencrypt/live/;
    ssl_certificate_key /etc/letsencrypt/live/;
    location / {
        try_files $uri $uri/ /index.php?$args;
    location ~ \.php(?:$|/) {
        try_files $uri =404;
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_param PATH_INFO $fastcgi_path_info;
        fastcgi_param HTTPS on;
        fastcgi_param modHeadersAvailable true;
        fastcgi_pass unix:/run/php/php7.3-fpm.sock;
        fastcgi_intercept_errors on;
        fastcgi_buffers 4 256k;
        fastcgi_busy_buffers_size 256k;

Download Roundcube

Download the latest version of Roundcube from the download page, as current the latest version is 1.4.8

sudo wget -P /var/www/html/

Extract Roundcube sources

sudo tar zxvf /var/www/html/roundcubemail-1.4.8-complete.tar.gz -C /var/www/html/

Rename the folder to roundcube. We’ll use the roundcube folder instead of folder with version ex roundcubemail-1.4.8, because in the future to update Roundcube we’ll only need to rename the folder.

sudo mv /var/www/html/roundcubemail-1.4.8 /var/www/html/roundcubemail

Set the permission to the roundcube folder, nginx user will need access read write to this folder.

sudo chown www-data:www-data -R /var/www/html/roundcubemail

Install Roundcube

Open on web browser
roundcube web installer
click Next

In this step enter the database credential
database setup roundcube
Scroll down click CREATE CONFIG button

Roundcube installer done
click Continue

initialize database roundcube
Generate database tables by click the Initialize Database button.

After finish, remove the installer folder

rm -fr /var/www/html/roundcubemail/installer/

Open Roundcube Webmail

The Roundcube webmail is available on https://DOMAIN/
roundcube webmail login

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