I am unable to sync mail from Zimbra Desktop folder to the Yahoo folder that has attachments causing the mail size to be greater than 1 Meg. If I remove the mail > 1Meg, the sync works fine with all mail with a size < 1Meg. The zdesktop.log indicates that problem is timeout related with JAVA:
Caused by: java.net.SocketTimeoutException: Read timed out
My JAVA version:
Java Version 1.6.0_10
Java Class Version 50.0
I have attached the relevant portion of the zdesktop.log.