I have put several appointments into my calendar in Zimbra. However, they do not sync back to my Yahoo calendar. I have had a lot of issues with calendar syncing between Zimbra and Yahoo. The only message I get is:


Account authentication failed. Please check username and password.

Debug message: CalDAV login failed

Exception:

com.zimbra.cs.mailbox.OfflineServiceException: CalDAV login failed
ExceptionId:sync-mbox-algarner53@yahoo.ca:1369245742416:1ec0e1c9942fd750
Codeffline.CALDAV_LOGIN_FAILED
at com.zimbra.cs.mailbox.OfflineServiceException.CALD AV_LOGIN_FAILED(OfflineServiceException.java:88)
at com.zimbra.cs.offline.OfflineCalDavDataImport.doCa lDavFailures(OfflineCalDavDataImport.java:91)
at com.zimbra.cs.offline.OfflineCalDavDataImport.impo rtData(OfflineCalDavDataImport.java:77)
at com.zimbra.cs.offline.OfflineImport.importData(Off lineImport.java:100)
at com.zimbra.cs.offline.YMailImport.importData(YMail Import.java:67)
at com.zimbra.cs.datasource.DataSourceManager.importD ata(DataSourceManager.java:317)
at com.zimbra.cs.datasource.DataSourceManager.importD ata(DataSourceManager.java:277)
at com.zimbra.cs.mailbox.DataSourceMailbox.syncAllLoc alDataSources(DataSourceMailbox.java:439)
at com.zimbra.cs.mailbox.DataSourceMailbox.sync(DataS ourceMailbox.java:478)
at com.zimbra.cs.mailbox.DataSourceMailbox.syncOnTime r(DataSourceMailbox.java:406)
at com.zimbra.cs.mailbox.SyncMailbox$1.run(SyncMailbo x.java:279)
at java.util.TimerThread.mainLoop(Unknown Source)
at java.util.TimerThread.run(Unknown Source)

However, my yahoo email works fine so the password is fine.

Any help would be appreciated.