Yes, I can send my log but I think my problem is surrounding the zimbraMtaAuthHost setting. My setup has the computer name 'mailhost.example.com' while the dns entry has 'mail.example.com'. When I look at the AuthHost setting it has the 'mailhost.example.com' as the value. I try to change it to 'mail.example.com', but here's the output:
zimbra@mailhost:/bin$ zmprov ms mailhost.example.com zimbraMtaAuthHost mail.example.com
ERROR: service.INVALID_REQUEST (invalid request: specified zimbraMtaAuthHost does not correspond to a valid service hostname: mail.example.com)
Any advice? Thanks!