If you no longer wish to continue using a mailing list, you can delete it. By doing so, the users subscribed to the mailing list will no longer be able to send or receive emails to the list.
In order to delete a mailing list -
- Go to Mail >> Manage Mailing Lists in your control panel.
- Select the check-box before the mailing list that you wish to delete.
- Click on Delete, and confirm the deletion.