> But MD _could_ scan thru the list, make a backup copy, strip out the
> senders address, make that the "default" list for this go around and
> then restore the backup.
The mail transfer agent is delivering the queue asynchronously. I.e. you
will be altering the delivery list used by 42 other messages to this list.
Aside from the fact that this is utterly baroque.
Check out the flag -om to smail, that other, friendlier, mailer.
-m or -om
Allow retention of the sender as a recipient for alias
and mailing list expansions that include the sender.
If this is Not set, the sender will not receive a copy
of the message only as a result of being in an alias or