This sounds like the good old Microsoft Mail problem rearing its ugly
head.  Microsoft Mail takes the truly intelligent attitude that you don't
need all those pesky RFC822 header lines and grabs only the Return-Path:
address (which is where errors are supposed to go, in this case
owner-lsumc-support) and assumes that it's the Reply-To: address.  The
only solution to this brain-damaged situation is to advise your MS Mail
users that they need to carefully check where their mail is going when
they reply to list mail.
 
Nathan
 
On Wed, 1 Nov 1995 12:29:22 CST Long Nguyen said:
>     Hi all,
>
>     I have a list called "lsumc-support".   Sometimes when users reply to
>     a message on this list, the reply is sent to "owner-lsumc-support"
>     instead of the list itself.  Then it sends this error message :
>
>       The enclosed mail file has been identified as a delivery error for
>       listLSUMC-SUPPORT because it was sent to the reserved
>       'owner-lsumc-support'mailbox.
>
>     Why is this?  The reply-to parameter is left out of the header so it
>     should be the default setting....which should be that all replies go
>     back to the list. Right?
>
>     Any ideas?
>     Thanks,
>
>     Long Nguyen
>     Computer Services
>     LSU Medical Center