I have installed and can run Zimbra client and administration on CentOS 5.2 x86_64.

I have one comment and one problem

The comment, if I goto http://mydomain.com:7071, I get a few square boxes followed by the letter 'P', however if I got https://mydomain:7071 everything works well. This seems odd.

My problem, and I am interested in how to troublshoot as well as the resolution is a big red X next to MTA in the Admin interface server status.

Where can I find log files and other stuff that will tell me what is really going on so I can see what silliness I have done?