Gmail sync error

[13thRune]

Hi there,

I'm brand new to Zimbra and am just working out how to use it. It was syncing fine until literally about 15 minutes ago and I now get this error code:

Failure communicating with remote server. Please try again later.

Debug message: Unexpected tag in response(expected C57 but got C56)

Exception:

com.zimbra.common.service.ServiceException: system failure: Folder sync failed
ExceptionId:sync-mbox-saraht131@gmail.com:1304792707537:99cab9a411f60dc2
Code:service.FAILURE
at com.zimbra.common.service.ServiceException.FAILURE (ServiceException.java:248)
at com.zimbra.cs.datasource.imap.ImapSync.importData( ImapSync.java:168)
at com.zimbra.cs.datasource.imap.ImapSync.importData( ImapSync.java:135)
at com.zimbra.cs.offline.OfflineImport.importData(Off lineImport.java:94)
at com.zimbra.cs.offline.GMailImport.importData(GMail Import.java:53)
at com.zimbra.cs.datasource.DataSourceManager.importD ata(DataSourceManager.java:312)
at com.zimbra.cs.datasource.DataSourceManager.importD ata(DataSourceManager.java:276)
at com.zimbra.cs.mailbox.DataSourceMailbox.syncAllLoc alDataSources(DataSourceMailbox.java:441)
at com.zimbra.cs.mailbox.DataSourceMailbox.sync(DataS ourceMailbox.java:471)
at com.zimbra.cs.mailbox.DataSourceMailbox.syncOnTime r(DataSourceMailbox.java:408)
at com.zimbra.cs.mailbox.SyncMailbox$1.run(SyncMailbo x.java:278)
at java.util.TimerThread.mainLoop(Unknown Source)
at java.util.TimerThread.run(Unknown Source)
Caused by: com.zimbra.common.service.ServiceException: system failure: Synchronization of folder '/Archives/Jokes etc' failed
ExceptionId:sync-mbox-saraht131@gmail.com:1304792707537:99cab9a411f60dc2
Code:service.FAILURE
at com.zimbra.common.service.ServiceException.FAILURE (ServiceException.java:248)
at com.zimbra.cs.datasource.imap.ImapSync.syncFailed( ImapSync.java:392)
at com.zimbra.cs.datasource.imap.ImapSync.syncMessage s(ImapSync.java:333)
at com.zimbra.cs.datasource.imap.ImapSync.syncFolders (ImapSync.java:243)
at com.zimbra.cs.datasource.imap.ImapSync.importData( ImapSync.java:163)
... 11 more
Caused by: com.zimbra.common.service.ServiceException: system failure: Error while fetching message for UID 57
ExceptionId:sync-mbox-saraht131@gmail.com:1304792707537:99cab9a411f60dc2
Code:service.FAILURE
at com.zimbra.common.service.ServiceException.FAILURE (ServiceException.java:248)
at com.zimbra.cs.datasource.imap.ImapFolderSync.check CanContinue(ImapFolderSync.java:1187)
at com.zimbra.cs.datasource.imap.ImapFolderSync.fetch Messages(ImapFolderSync.java:858)
at com.zimbra.cs.datasource.imap.ImapFolderSync.fetch Messages(ImapFolderSync.java:750)
at com.zimbra.cs.datasource.imap.ImapFolderSync.syncM essages(ImapFolderSync.java:346)
at com.zimbra.cs.datasource.imap.ImapSync.syncMessage s(ImapSync.java:330)
... 13 more
Caused by: com.zimbra.cs.mailclient.MailException: Unexpected tag in response(expected C57 but got C56)
at com.zimbra.cs.mailclient.imap.ImapRequest.checkSta tus(ImapRequest.java:121)
at com.zimbra.cs.mailclient.imap.ImapRequest.sendChec kStatus(ImapRequest.java:112)
at com.zimbra.cs.mailclient.imap.ImapConnection.uidFe tch(ImapConnection.java:334)
at com.zimbra.cs.mailclient.imap.ImapConnection.uidFe tch(ImapConnection.java:382)
at com.zimbra.cs.mailclient.imap.ImapConnection.uidFe tch(ImapConnection.java:400)
at com.zimbra.cs.datasource.imap.ImapFolderSync.fetch Messages(ImapFolderSync.java:854)
... 16 more

Thanks in advance for any help you can offer

[13thRune]

I've discovered that sync works fine if I remove one particular folder from displaying in IMAP (through Google labs Advanced Imap Controls).

This is a particularly large folder with lots of attachments but this shouldn't really be a problem? I've never had a problem syncing these folders with Thunderbird/Evolution or any other clients. Is there some setting I need to change to increase the folder size that Zimbra will sync?