Webmail is a way of accessing your email using a web browser (like Chrome, Firefox or Safari) just like Hotmail or Gmail.
You can access webmail by adding webmail. or /webmail to the front or back of your domain. For example, if your domain is yourdomain.net.au you will use one of these 2 links:
yourdomain.net.au/webmail or webmail.yourdomain.net.au
Once in, you will have 3 email clients to chose from. We find that Roundcube is often the easiest to use. Click Set as Default and it will open automatically the next time you access Webmail