At 10:07 PM +0200 9/27/01, guenter wessling wrote: > Mail-sending does not require a password.
I believe you can require this in current versions of sendmail. From what you said it occurs to me that you may want to have sendmail operate on both SMTP and Submit ports; require that SMTP be for inbound local mail only; require that All Submission port transactions be authenticated; all users have mail client which supports SMTP AUTH and be configured to use Submission port.