On 8/27/2017 6:05 PM, joao reis wrote: > Hi, > > I have a postfix server with antispam milter and policy daemons > forwarding messages to various distinct remote servers. It works > very well, all messages for the configured domains are forwarded > using smtp / lmtp transport to each server. > > My ideia is keep the minimal configuration for each domain: domain > settings and the transport maps. Today I have this: > > virtual_mailbox_domains = /etc/postfix/virtual_domains # with the > valid domains > transport_maps = hash:/etc/postfix/transport # with the domains and > destination > > The problem is that when I send a message to an inexistent mailbox > and existent configured domain, the message is forwarded to > destination server and then the destination server rejects it. > > Is it possible to reject in rcpt to command in the antispam gateway > without copying all the mailbox table in to it? > > > Thanks in advance. > > João Reis. >
The best way to solve this is to copy your user list to the gateway so it knows the valid recipients, then automate the procedure. If that's not possible, maybe you can use active recipient verification. Make sure you limit the verification to your own internal domains. http://www.postfix.org/ADDRESS_VERIFICATION_README.html -- Noel Jones
