Panther, Message size limit disables mail delivery!!!!!!!!

If I set me message size limit to 50megs I get the errors below and my mail server stops delivering mail and just holds it until I turn the feature back off. This has caused me days of frustration/downtime and server re-installs because I could not figure out why the mail would not work. I eventually tracked down the problem to the max message size limit. My mailbox limits are all set at 100mb or 500mb. There is no ssl or anything out of the ordinary installed or running with this server. Does anybody know if this is just a bug that apple ignores or is there a fix out there? The errors are below with the max limit set to 50mb, the mail runs fine when it is turned off. Feb 19 16:22:15 server postfix/local[10333]: fatal: main.cf configuration error: mailbox_size_limit is smaller than message_size_limit Feb 19 16:22:16 server postfix/master[293]: warning: process /usr/libexec/postfix/local pid 10333 exit status 1 Feb 19 16:22:16 server postfix/master[293]: warning: /usr/libexec/postfix/local: bad command startup -- throttling