I installed Zimbra today because I'am (and also quite a number of my friends!) not satisfied with the lettertype and icons in Microsoft Outlook (in 2003, 2007, 2010 versions!) nor in Windows Live mail.
After installing Zimbra it seems to be oke but it was a big NEGATIVE suprise to me that also in your program the lettertypes and icons cannot be changed to a format that people older than 50years can read without using a loupe!!!
I looked in the forum for the same problem, already in dec. 2008 a user send the same remark.
Is this problem solved in the meantime (and how?) or why is that still not solved????