warren@netlab.co.za wrote:
> Greetings
>
> How can I relay all mail domains except a few? These specific
> destination domains need to remain in the local queue to be delivered
> when the etrn command is received, all other must go to the relayhost.
>
> Regards
> Warren


Take a look at http://www.postfix.org/ETRN_README.html
under the sub-section "Configuring a domain for ETRN service only"

--
Greg