On one of our zimbra servers the Daily Report reads like so:
Generating report

From 2006-10-08 00:00:00 to 2006-10-09 00:00:00

No messages found

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I KNOW that email is going to clients on this server. What's up and how do I get a good daily report?

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Also, I don't know if this is related or not... The server statistic graphs on this host are totally messed up. The are all 'scrunched up' and instead of nice dates at the bottom there is a 'black bar' ... It looks like many dates are written over each other... I'll see if I can copy one of the server and post a link