Re: SMTP exit program? -- MIDRANGE-L

As a courtesy to our subscription customers, we set up an email server for
them (with their own domain name) on our Notes server.  Who knows from where
they will receive email; anyone from anywhere can send them email.
Likewise, they can send email to anyone, anywhere.  I just want to tighten
up the server so that the email is either a) FROM someone in my list, or b)
TO someone in my list.  My list will be all of the user accounts that I've
set up (a couple hundred at most).  If the incoming email fails both tests,
it will be rejected.

Now, if everyone just stayed put in their office and sent email from a
never-changing static connection everthing would be easy.  But alas such is
not the case; many of our customers (ourselves included) have roaming users
who connect to an ISP in who-knows-where, and they still need to be able to
send their email, which means that I need to allow some relays.  I have set
up some relay restrictions already (in both Notes and on the 400), and for
the most part it works alright.  But some relay still gets thru. Requiring
that the email meet both tests above should put a complete stop to unwanted
relays.

The GUI interface in Ops Nav will allow me to enforce the first requirement
but not the second.  I can't use one without the other, so I use neither.

"Chris Bipes" <chris.bipes=DL2X/VYRpcvuT2QgWa/frQ@public.gmane.org> wrote in
message
E46D194BB76F194DB6F771496C4258BC01E5A7@mailsrv.rp.cross-check.com">news:E46D194BB76F194DB6F771496C4258BC01E5A7@mailsrv.rp.cross-check.com...
> Where are you relaying from?  You can list individual servers or internal
> subnets for relaying and block the general public.  That is how I have my
> SMTP and Exchange servers setup.  We send confirmation e-mails to our
> customers customers on behalf of our customers.  A real business need for
> us.  At first the whole world was using our servers to spread their spam
but
> we stopped that.
>
> Chris Bipes
>
> -----Original Message-----
> From: Tom Hightower [mailto:tomh=WgFEu9fVc9EAvxtiuMwx3w@public.gmane.org]
>
> Well, I need to do _some_ relaying because our NT-based Domino server is
> hiccuping way too much (especially since I installed the latest security
> patches), and we rely on it for email for several sites.  So... I relay
all
> SMTP that comes in to our Domino server out to the SMTP on the 400.  It
> works, but my ability to monitor the email is gone for the most part.
>
> If I could just write an RPG program to verify the from/to addresses, that
> would go along way towards keeping us off of the various block-lists.
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