Setting up a new mailbox
Login to DirectAdmin control panel using the URL, your username and the password that you've been given.
Click the link E-Mail Accounts in E-Mail Management section.
Click on Create mail account.
Enter desirable username which will form email address together with domain name. Choose strong password for your email account and also define its quota.
On a second screen you will see the main e-mail details that you have to use in your mail client in order to setup it properly.
In case you went back to previous screen, you will see updated list of email accounts.