Check recipient map before RBL check

[André Hänsel]

Hi,

when I specify

relay_recipient_maps = hash:/etc/postfix/relay_recipients
smtpd_client_restrictions = reject_rbl_client dnsbl

the RBL is checked first and after that the existence of the user is
verified.
Apparently this is because the relay_recipient_maps-check is not part
of the smtpd_..._restrictions process.

Can I change the order, so no RBL check is done for nonexistent users?

Regards,
André