Panther email horror

I did a clean install of panther server on my server and manually moved over my sql databases and web files and they work fine. I did not move over the email database, instead I just re made the user accounts and configures the rest. The problem,. it dont work. I had a Jaguar server running fr a year with no problems so I am fairly confident that I set everything correctly. The dns/mx on our names had worked fine for years so I think that is ok. It is just one simple server hosting web files and email for our company. We have a bout a dozen domains pointing to it. I can send mail buy not reveive any. The mail server will not start up half of the time and I get strange errors in my logs. Apple has crummy documentation and their website is even worse. Here are the errors: Jan 27 05:49:11 server postfix/smtpd[1498]: C5A7C205CD: reject: RCPT from c-24-99-11-86.atl.client2.attbi.com[24.99.11.86]: 554 <jimmy@floridamusicfestival.com>: Relay access denied; from=<helen@ajc.com> to=<jimmy@floridamusicfestival.com> proto=ESMTP helo=<ajc.com> Jan 27 05:49:12 server postfix/smtpd[1498]: lost connection after RCPT from c-24-99-11-86.atl.client2.attbi.com[24.99.11.86] Jan 27 05:55:37 server postfix/master[716]: warning: process /usr/libexec/postfix/local pid 1596 exit status 1 Jan 27 05:55:37 server postfix/master[716]: warning: /usr/libexec/postfix/local: bad command startup -- throttling Jan 27 05:56:37 server postfix/local[1630]: fatal: main.cf configuration error: mailbox_size_limit is smaller than message_size_limit and Jan 27 04:20:10 server postfix/master[2719]: terminating on signal 15 Jan 27 04:23:24 server postfix/postfix-script: fatal: the Postfix mail system is not running Jan 27 04:23:24 server postfix/master[2778]: daemon started -- version 2.0.10 Jan 27 04:23:28 server postfix/postfix-script: stopping the Postfix mail system Jan 27 04:23:28 server postfix/master[2778]: terminating on signal 15 Jan 27 04:23:33 server postfix/postfix-script: fatal: the Postfix mail system is not running Jan 27 04:23:34 server postfix/master[2794]: daemon started -- version 2.0.10 Any help would be appreciated,. remember this is a clean install with no hacking with config files. -tim