To Create A Mailing List in Website Panel:
1.) Login to your Website Panel via http://cp.domain.com.
2.) At the centre of "User Spaces" area, click on your Hosting Plan name such as "EBiz plus Windows".
3.) Select on "Mail -> Groups" from Website Panel Menu.
4.) Click on "Create Mail Groups" button.
5.) Insert the Source E-Mail such as "email@example.com", at the "Group E-Mails" field insert all the e-mail address that will receive e-mail while email sends to firstname.lastname@example.org.