Am 04.01.2014 15:12, schrieb Jason Woods: > It seems that if an entry is found in recipient_canonical_maps, > postfix assumes the target address to exist. Is this intended behaviour?
surely you say explicit "accept messages for A and forward them to B" postffix is not interested at this moment if B exists and if someone configures it this way it's a config mistake B could also be an external address if the domains are all on your site consider sql tables for configuration and a smart backend not allowing to specify a non-existing forwarder-target or remove it if it is used as target or at least remove the forwarder record automatically at the same time