This may be a sendmail problem but...

[Peter Peters]

On Thu, 23 May 2002 10:14:51 -0700, you wrote:

>              The gateway mail server is not aware of which email
>address are valid and which are not on the main server (which should
>not normally be a problem I assume).

I would strongly suggest to make the gateway aware of the addresses. Or
else you will also have the undeliverable bounces without mailscanner.
It is best to not accept undeliverable message to your own domains. So
you wont be bothered with all (double) bounces.

--
Peter Peters
senior netwerkbeheerder,  Centrum voor Informatievoorziening,
Universiteit Twente,   Postbus 217,  7500 AE  Enschede
telefoon: +31 53 489 2301, fax:+31 53 489 2383, http://www.utwente.nl/civ