For my local mailserver with postfix/dovecot and virtual domains set up as follows:
relayhost = aaa.bbb.ccc:25 virtual_mailbox_domains = xxx.yyy.zzz virtual_transport = lmtp:unix:private/dovecot-lmtp I would like to achieve the following - mail of all subnets in my LAN is relayed if nesessary (so not for the virtual domain). To accomplish this, I have listed all my subnets under mynetworks. This works - restrict the delivery of a particular subnet, 192.168.80.0/24 only to the virtual domain so forbid further relay via the relayhost How to accomplish this? I can not remove the 192.168.80.0/24 from mynetworks because then the email is not delivered to the virtual domain too. Thanks. -- Jaap