I'm setting up a server for collocation, and I want three users to be able to use it as their smtp server, so I've set $mynetworks to be the netblock for the dial-up pool of the ISP, and in main.cf I've got:

smtpd_sender_restrictions = hash:/etc/postfix/access

smtpd_recipient_restrictions =
        reject_unknown_sender_domain,
        reject_unknown_recipient_domain,
        reject_non_fqdn_sender,
        reject_non_fqdn_recipient,
        reject_invalid_hostname,
        reject_unauth_pipelining,
        allow_mynetworks,
        reject_unauth_destination,
        check_relay_domains

in /etc/postfix/access I've got

kateohmark.co.nz OK
chrisohmark.co.nz OK
barryohmark.co.nz OK

Because the access file only 'blocks' the relay if there is an explicit REJECT it doesn't stop someone using 'bobanydomain.com' as the from address and relaying off my box.. I only want the server to relay for chris, Barry and kateohmark.co.nz in the ISP netblock in $mynetworks.

Is there a way I can effectively link the smtpd_sender_restrictions to the virtual maps?

Cheers, Chris.

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