My folder failed to sync.
I have posted the debug below changing the email address only.
Could anyone help to resolve this issue


Failure communicating with remote server. Please try again later.



Debug message: Connection is closed

Exception:

com.zimbra.common.service.ServiceException: system failure: Folder sync failed
ExceptionId:sync-mbox-xxxx@xxxxxx.com:1351008720717:136792f3e23c108d
Code:service.FAILURE
at com.zimbra.common.service.ServiceException.FAILURE (ServiceException.java:253)
at com.zimbra.cs.datasource.imap.ImapSync.importData( ImapSync.java:169)
at com.zimbra.cs.datasource.imap.ImapSync.importData( ImapSync.java:136)
at com.zimbra.cs.offline.OfflineImport.importData(Off lineImport.java:100)
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(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
Caused by: com.zimbra.common.service.ServiceException: system failure: Synchronization of folder '/Inbox' failed
ExceptionId:sync-mbox-xxxx@xxxxx.com:1351008720717:136792f3e23c108d
Code:service.FAILURE
at com.zimbra.common.service.ServiceException.FAILURE (ServiceException.java:253)
at com.zimbra.cs.datasource.imap.ImapSync.syncFailed( ImapSync.java:388)
at com.zimbra.cs.datasource.imap.ImapSync.syncMessage s(ImapSync.java:329)
at com.zimbra.cs.datasource.imap.ImapSync.syncFolders (ImapSync.java:239)
at com.zimbra.cs.datasource.imap.ImapSync.importData( ImapSync.java:164)
... 10 more
Caused by: java.io.IOException: Connection is closed
at com.zimbra.cs.mailclient.imap.ImapConnection.sendR equest(ImapConnection.java:498)
at com.zimbra.cs.mailclient.imap.ImapRequest.send(Ima pRequest.java:95)
at com.zimbra.cs.mailclient.imap.ImapRequest.sendChec kStatus(ImapRequest.java:111)
at com.zimbra.cs.mailclient.imap.ImapConnection.doSel ectOrExamine(ImapConnection.java:205)
at com.zimbra.cs.mailclient.imap.ImapConnection.selec t(ImapConnection.java:192)
at com.zimbra.cs.datasource.imap.RemoteFolder.select( RemoteFolder.java:198)
at com.zimbra.cs.datasource.imap.ImapFolderSync.syncM essages(ImapFolderSync.java:269)
at com.zimbra.cs.datasource.imap.ImapSync.syncMessage s(ImapSync.java:326)
... 12 more

If issue persists please post description and debug information here.