in Beta 2 there some troubles to display emails with special characters like " ß ä ü ö ".
If one of these characters are in the name from a sender, the message couldn't be displayed - the whole email are blank, including subject but it can be viewed complete if you click "view original" you can see the whole raw email so we can be sure that the problem is from zimbra.
I know the Problem in the older version 5, the email there would displayed completly but some characters sometimes changed to "?" and similar graphics.
When we could download Beta 6 RC1 ?