Creating User Accounts
Creating user accounts is handled through the VirtualMin module. When logged into Webmin, select the Servers tab and click Virtualmin Virtual Servers. Click the domain that you want to create a user account for. Click Edit Mail Users button Click Add a User to this domain Enter the required information and click Create.
Some notes: FTP Access If you want the user to upload files through ftp, then make sure check the ftp box. This will only allow them to place files in their own folder on the server, by default. In order to allow them to upload files to the server’s public_html folder, you will need to modify the permission on that folder to allow group write access.