All of this was working before the system decided to come to a halt Friday morning. I went in and made a change to the host file and on reboot Fedora said I had some file system errors so I ran a fsck on it and after that, it all started working fine again so who knows which fixed it if any.
saslauthd may have not been running after the reboot from the morning. All is well for now. Or at least enough until I can get back to work in a week and put upgrading to Fedora 10 and to the latest Zimbra.
dj