> * Only restricted hosts on the intranet should be able to dump mail on
> the gateway that should be delivered to the Internet (we use an SMTP
> backbone and we want only the backbone SMTP servers to be able to connect to
> the gateway for sending mail to the internet. Individual users should dump
> their email on the SMTP backbone, not directly on the firewall).

List all these hosts in "mynetworks".

> * On the other hand, on the outside interface of the gateway, I want
> to accept email from the whole Internet for my local (virtual) domains. In
> this case, anti-relaying should be in effect to prevent us from being used
> as a relay.

That's the default behaviour.

-- 
ralf.hildebrandtberliner-volksbank.de                  innominate AG
r.hildebrandtbvb.berliner-volksbank.de          the linux architects
tel: 3063-4942 fax: -4200                   http://www.innominate.com

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