If your website is hosted with us and you have been provided with an email account, you can send/receive emails using that account in a number of different ways:
Using the 3rd way you just point your web browser to a particular web address and the browser presents you with an interface which you can use to manage your emails.
The address of your webmail site is webmail.<your-domain-name>/login.php. Replace the <your-domain-name> part with the domain name of your website. For example, if your website address is www.mywebsite.com.au, your address to the login page of your webmail site address would be webmail.mywebsite.com.au/login.php
When you've successfully navigated to the login page of your webmail site, you should be presented with a login screen similar to the following:
Upon successfully logging in you should see a screen similar to the following:
To see your Inbox, just click on the "Mail" menu item. To send an email, hover over the triangle next to the "Mail" menu item.