On Tue, 31 Oct 2006 16:10:35 -0500, Steve Howie <[log in to unmask]> wrote:

>Does any know if there is a legitimate need for the "other" listserv ids 
>associated with each list (i.e. owner-listname-request, 
>listname-subscribe-request etc.) to receive incoming emails addressed 
>directly to those ids?

Well, yes you can block these addresses but they are intended to perform
special functions, so if you block them, those functions will not get
performed.

listname   (list posting address)
owner-listname  (Used in RFC821 Return-Path for routing error-bounce NDN msgs)
listname-request  (alias for the List Owner)
listname-search-request  (handles search requests coming 
  from INDEX mode subscriptions, required for INDEX subscriptions to work)
listname-server   (historical, equivalent to  LISTSERV@...)
listname-signoff-request  (unsubscribe from the list)
listname-subscribe-request  (subscribe to the list)
listname-unsubscribe-request  (unsubscribe from the list)