Tawanda Kavayi: > I think I have failed to describe the scenario accurately. > > The MX server is not the problem, and it is not where I want this setup. > If the MX server doesn't know a mailbox it will reject mail. There is a > second server. This second server does not receive or send Internet mail > directly. It uses fetchmail to collect mail from mailboxes on the MX > server and deliver it to local mailboxes. These local mailboxes are in > the same email domain as on the MX. Every user in the email domain has a > mailbox on the MX. A few users also have mail boxes on the second > server. Outbound mail is also sent from the second server, and relayed > via the MX to the Internet (the MX is the relayhost for the second server).
Then indeed you appear to have decribed the problem backwards. Your second server should deliver ALL mail to the relay, except for a few local users. That is described in: http://www.postfix.org/STANDARD_CONFIGURATION_README.html#some_local Wietse -
