From: Robert Bonomi on
In article <4BC314E9.FFB7.0000.0(a)group.dsl.pipex.com>,
John Chajecki <jchaj.news(a)group.dsl.pipex.com> wrote:
>I've tried the (apparently undocumented) -L option

The -L option *IS* fully documented. Se the Sendmail Operations Manual,
Appendix A. Circa page 168.