On 18 May 2002 at 22:16, I wrote, in part:
> When a contributor of my list sends e-mail to both "chiari" and my list
> (either address can be "To:" or "CC"), listserv distributes the
> contribution as expected and then a short time later distributes the
> Yahoogroups version of the same post.  I know that because that group
> now uses a bottom banner (of many lines ... blah!).

Neither YG nor LISTSERV has a problem.  It happened that one of the YG
subscribers was behind an MSExchange gateway that would resend any
incoming YG distributions to other addresses mentioned in the mail
header lines. :-(     Thanks to Russ Hicks for helping to track down
the problem.

cheers, wayne