Failure communicating with remote server. Please try again later.
sometimes it worksbut generally i am getting this message since last 2 months
Debug message: Connection is closed
Exception:
com.zimbra.common.service.ServiceException: system failure: Folder sync failed
ExceptionId:btpool0-12:1435381417692:a66009ebbf68dafa
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(OfflineImport.java:100)
at com.zimbra.cs.datasource.DataSourceManager.importData(DataSourceManager.java:317)
at com.zimbra.cs.datasource.DataSourceManager.importData(DataSourceManager.java:277)
at com.zimbra.cs.mailbox.DataSourceMailbox.syncAllLocalDataSources(DataSourceMailbox.java:439)
at com.zimbra.cs.mailbox.DataSourceMailbox.sync(DataSourceMailbox.java:478)
at com.zimbra.cs.service.offline.OfflineSync.handle(OfflineSync.java:55)
at com.zimbra.soap.SoapEngine.dispatchRequest(SoapEngine.java:412)
at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.java:287)
at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.java:158)
at com.zimbra.soap.SoapServlet.doWork(SoapServlet.java:303)
at com.zimbra.soap.SoapServlet.doPost(SoapServlet.java:217)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
at com.zimbra.cs.servlet.ZimbraServlet.service(ZimbraServlet.java:206)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:814)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:390)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:218)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:422)
at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.handler.rewrite.RewriteHandler.handle(RewriteHandler.java:230)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:585)
at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:988)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:756)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:415)
at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:429)
at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:451)
Caused by: com.zimbra.common.service.ServiceException: system failure: Synchronization of folder '/Inbox/SVC' failed
ExceptionId:btpool0-12:1435381417692:a66009ebbf68dafa
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.syncMessages(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)
... 34 more
Caused by: java.io.IOException: Connection is closed
at com.zimbra.cs.mailclient.imap.ImapConnection.sendRequest(ImapConnection.java:498)
at com.zimbra.cs.mailclient.imap.ImapRequest.send(ImapRequest.java:95)
at com.zimbra.cs.mailclient.imap.ImapRequest.sendCheckStatus(ImapRequest.java:111)
at com.zimbra.cs.mailclient.imap.ImapConnection.doSelectOrExamine(ImapConnection.java:205)
at com.zimbra.cs.mailclient.imap.ImapConnection.select(ImapConnection.java:192)
at com.zimbra.cs.datasource.imap.RemoteFolder.select(RemoteFolder.java:198)
at com.zimbra.cs.datasource.imap.ImapFolderSync.syncMessages(ImapFolderSync.java:269)
at com.zimbra.cs.datasource.imap.ImapSync.syncMessages(ImapSync.java:326)
... 36 more