There will be a time when you will not want to receive mail on created DL for some reasone. So in this situation you can disable DL for not receiving mail from zimbra control panel.
Open Zimbra Control Panel and go to DL list and double click on DL on which you don't want to receive mail.
Go to Properties and untik Can receive mail option
Open Zimbra Control Panel and go to DL list and double click on DL on which you don't want to receive mail.
Go to Properties and untik Can receive mail option