I have a server-config Mac mini set up at home. When I had Snow Leopard on it, I had started setting up a mail server, but left it in a half-configured state of some kind. I've since upgraded to Lion. The mail server seems to be working fine; that is, I can send and receive mail, but my admin account is getting a copy of every message received by the mail server. I do remember checking a box in Snow Leopard server admin that seemed to be intended to set up this behaviour. Now that the server is running though, I'd like to disable it. How can I turn off this behaviour in Lion Server? The check box to handle it isn't in the Lion server admin app.
I'll give you two choices:
First, you can edit the file /etc/postfix/main.cf, and delete the line that starts "always_bcc=". You'll need root access to edit it; if you're comfortable using a command-line editor like vi or nano, you can just use that with
Second, you can install the Server Admin Tools (10.7.2 version is here). It includes Server Admin, which includes advanced mail server settings, like enabling/disabling the always_bcc option.