>I thought this was the best way to setup postfix with virusscanning. > > > forget about unknown users. export the known users from the > > imail box to the MX. > >Some of the domains behind the virusscanner are not on Imail.
if the traffic isn't too big for them, then use RAV for them, and tell postfix the next hop where those recipients are verifiable: man 5 postconf address_verify_transport_maps (default: $transport_maps) Overrides the transport_maps parameter setting for address verification probes. Len