Javier
Tue Jan 27 20:31:51 CST 2004
Hi Ryan!
This is expected behavior and you cannot change it (unless you stop using
SMTP and go POP3... which I don't think anyone would). The reason is that
your server must always accept SMTP mail that it is resposible for. Let's
say I send you an email... my Exchange box will contact your Exchange box
and relay the message (without any kind of authentication) as long as the
message is addressed to your domain your server has every reason to accept
it (even if its only to send an NDR later). The same principle applies in
your case.
You are not relaying... and that's the important thing! :-)
--
Javier [SBS MVP]
<< SBS ROCKS !!! >>
"Ryan" <anonymous@discussions.microsoft.com> wrote in message
news:510c01c3e527$a2dc07c0$a101280a@phx.gbl...
> Hi All,
>
> I've noticed if I'm outside of my network (at home) and
> try and send an email through my exchange server, with an
> invalid account (SMTP Authentication is enabled), but
> address it to someone inside my network, it works and
> sends through.
>
> However if I send an email through my exchange server, to
> a different domain, with an invalid account for the (smtp
> auth), it's denied (which is good)!
>
> I use the SMTP authentication for remote users.
>
> How can I stop remote users trying to send emails going
> through my domain to users that don't exist.,wiht out a
> valid user account.
>
> Thanks