Deleting a contact list from an email account is relatively straightforward. To remove a contact list, first open your email account and navigate to the contacts page. From here you can select the list that you would like to delete, then click the 'Delete' option. Once it is deleted, any emails sent to that contact list will no longer be received. It's important to note that some accounts may have additional steps required for deleting lists depending on their specific interface or settings; if this is the case with your account, please consult its documentation for more information.