Mail not working

[Roadracer]

Not sure what is happening. Any help would be appriciated. I have installed phpBB2 on my site and just to test the email system, I tried to send something via the website. I didn't get any mail. Here is some of the maillog.

Dec 27 14:59:04 server postfix/qmgr[2470]: 41A0891378B: from=<apache@server.roadracers.org>, size=1541, nrcpt=1 (queue active)
Dec 27 14:59:12 server postfix/smtp[21535]: 41A0891378B: to=<david.hennessy@qwest.com>, relay=uswgco33.uswest.com[199.168.32.122], delay=1636, status=bounced (host uswgco33.uswest.com[199.168.32.122] said: 553 5.1.8 <david.hennessy@qwest.com>... Domain of sender address apache@server.roadracers.org does not exist (in reply to RCPT TO command))
Dec 27 14:59:12 server postfix/cleanup[21538]: A769891378A: message-id=<20051227205912.A769891378A@server.roadracers.o rg>
Dec 27 14:59:12 server postfix/qmgr[2470]: A769891378A: from=<>, size=3672, nrcpt=1 (queue active)
Dec 27 14:59:12 server postfix/qmgr[2470]: 41A0891378B: removed
Dec 27 14:59:12 server postfix/local[21539]: A769891378A: to=<root@server.roadracers.org>, orig_to=<apache@server.roadracers.org>, relay=local, delay=0, status=sent (delivered to mailbox)
Dec 27 14:59:12 server postfix/qmgr[2470]: A769891378A: removed

Not sure if its the server or my error in setting up phpBB. Sorry if this turns out to my my error in setting up phpBB.

Just added the webmail pkg. to test that, install worked, but can't log into it.