On    Wed,    29   Jan    1997    16:50:05    -0500   Valdis    Kletnieks
<[log in to unmask]> said:

>Pray tell.. do you know of a  reliable programmatic way to detect that a
>given  message   came  from   a  list,  and   therefor  should   not  be
>vacation-replied to? If so, please share,  so that the world may benefit
>;)

If the  return path  starts with  owner- or ends  in -request  or -owner,
changes are VERY GOOD that this comes from a mailing list. I'm sure there
are lists that don't match this rule, but I doubt there are many.

  Eric