> When mail is set without "Mail-via= Distribute", a separate mailfile is sent > to each of the concealed users, so that other people cannot see them in the > 'To:' field. This may result in an increase in network load, and will In a pure (B)SMTP network, this would not result in any increase in network load, since the address list is out of band. The To: line would remain To: listname. The recipients are effectively BCC'd. I think that this is essentially how Internet mailing lists work. I would much rather have all my list mail show To: listname instead of To: <LDW> . /Leonard