Visit yourdomain.com/webmail
Be sure to replace yourdomain.com with your actual domain name.
Enter your username and password, and then click OK.
User Name: Enter your full email address, all lower case
Password: Enter your email address' password
I don't see where to enter my username / password
I forgot my email password
You should now be logged in! Click on one of the three webmail clients and get started using your email!