I have Zimbra Desktop up and running but decided to change the sync period from 15 to 5 minutes. Did this within Account Set-up but when I "Test and Save Settings" I get the following error:
In order to use calendar sync, you must upgrade your Yahoo! Calendar Classic to the all-new Yahoo! Calendar service.
Why is this? I am using the all-new calendar and it is syncing just fine. I just want to change the sync periodicity.
I am using Ymail free on a fully updated Mac Leopard install.