Question

How to setup webmail client on Ubuntu 18.04 server with Apache, not in main web site directory.

I have successfully installed and setup postfix. I would like to add webmail to the server. If the site domain is example.com, and the main site directory (served by Apache2) is /var/www/html, I wish to add webmail to the site, but it cannot be in the /var/www/html directory. For example, I would like the webmail folder to be located in /var/www/webmail.

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Hi, The idea is to set up an extra virtual host for webmail site in your Apache configuration. You might create a subdomain, e.g. webmail.example.com, pointing at droplet’s IP, and configure Apache virtual host for that subdomain, entering document root directory (site directory) different to the directory of your main domain (example.com). So, main part of webmail virtual host configuration would look like:

<VirtualHost *:80>
    ServerName webmail.example.com
    DocumentRoot /var/www/webmail
    ...
</VirtualHost>

Here is the tutorial on that subject (especially step 5): https://www.digitalocean.com/community/tutorials/how-to-install-the-apache-web-server-on-ubuntu-18-04#step-5-—-setting-up-virtual-hosts-(recommended)