I have a question concerning the message count graph in the admin console.

It gives me a message count of 4.5 , since i just did the setup of the server and did a few email test i was wondering how did i get a 4.5 mesage count or is it 4500 messages sent for that period.

If the 4.5 = 4500 messages if that is the case, i was wondering if after I`ve intalled Zimbra (defeault setting) what is the status of the SMTP relay , is it open by default or closed.